Activity › Discussion › Math › Maths
-
Maths
Posted by Danish Iqbal Satti on July 22, 2024 at 3:52 pmCan you add 1/4, 2, and 1 1/2?
brajesh replied 9 months ago 2 Members · 1 Reply -
1 Reply
-
To add <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>1</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{1}{4}</annotation></semantics></math>41, <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mn>2</mn></mrow><annotation encoding=”application/x-tex”>2</annotation></semantics></math>2, and <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mn>1</mn><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding=”application/x-tex”>1 \frac{1}{2}</annotation></semantics></math>121, follow these steps:
-
Convert mixed numbers to improper fractions:
- <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mn>1</mn><mfrac><mn>1</mn><mn>2</mn></mfrac><mo>=</mo><mfrac><mn>3</mn><mn>2</mn></mfrac></mrow><annotation encoding=”application/x-tex”>1 \frac{1}{2} = \frac{3}{2}</annotation></semantics></math>121=23
-
Find a common denominator for the fractions:
- The denominators are 4 and 2. The least common denominator is 4.
-
Convert <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>3</mn><mn>2</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{3}{2}</annotation></semantics></math>23 to have a denominator of 4:
- <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>3</mn><mn>2</mn></mfrac><mo>=</mo><mfrac><mrow><mn>3</mn><mo>×</mo><mn>2</mn></mrow><mrow><mn>2</mn><mo>×</mo><mn>2</mn></mrow></mfrac><mo>=</mo><mfrac><mn>6</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{3}{2} = \frac{3 \times 2}{2 \times 2} = \frac{6}{4}</annotation></semantics></math>23=2×23×2=46
-
Add the fractions:
- <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>1</mn><mn>4</mn></mfrac><mo>+</mo><mfrac><mn>6</mn><mn>4</mn></mfrac><mo>=</mo><mfrac><mn>7</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{1}{4} + \frac{6}{4} = \frac{7}{4}</annotation></semantics></math>41+46=47
-
Convert <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>7</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{7}{4}</annotation></semantics></math>47 to a mixed number:
- <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>7</mn><mn>4</mn></mfrac><mo>=</mo><mn>1</mn><mfrac><mn>3</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{7}{4} = 1 \frac{3}{4}</annotation></semantics></math>47=143
-
Add the whole number 2 to <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mn>1</mn><mfrac><mn>3</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>1 \frac{3}{4}</annotation></semantics></math>143:
- <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mn>2</mn><mo>+</mo><mn>1</mn><mfrac><mn>3</mn><mn>4</mn></mfrac><mo>=</mo><mn>3</mn><mfrac><mn>3</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>2 + 1 \frac{3}{4} = 3 \frac{3}{4}</annotation></semantics></math>2+143=343
So, <math xmlns=”http://www.w3.org/1998/Math/MathML”><semantics><mrow><mfrac><mn>1</mn><mn>4</mn></mfrac><mo>+</mo><mn>2</mn><mo>+</mo><mn>1</mn><mfrac><mn>1</mn><mn>2</mn></mfrac><mo>=</mo><mn>3</mn><mfrac><mn>3</mn><mn>4</mn></mfrac></mrow><annotation encoding=”application/x-tex”>\frac{1}{4} + 2 + 1 \frac{1}{2} = 3 \frac{3}{4}</annotation></semantics></math>41+2+121=343.
-
Log in to reply.