Add 72/9 and 20/28
1st number: 8 0/9, 2nd number: 20/28
72/9 + 20/28 is 61/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
72/9 = 72 × 28/9 × 28 = 2016/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
20/28 = 20 × 9/28 × 9 = 180/252 - Add the two like fractions:
2016/252 + 180/252 = 2016 + 180/252 = 2196/252 - 2196/252 simplified gives 61/7
- So, 72/9 + 20/28 = 61/7
In mixed form: 85/7
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