Add 20/72 and 40/28
1st number: 20/72, 2nd number: 1 12/28
20/72 + 40/28 is 215/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
40/28 = 40 × 18/28 × 18 = 720/504 - Add the two like fractions:
140/504 + 720/504 = 140 + 720/504 = 860/504 - 860/504 simplified gives 215/126
- So, 20/72 + 40/28 = 215/126
In mixed form: 189/126
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