Add 90/18 and 72/28
1st number: 5 0/18, 2nd number: 2 16/28
90/18 + 72/28 is 53/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
90/18 = 90 × 14/18 × 14 = 1260/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
72/28 = 72 × 9/28 × 9 = 648/252 - Add the two like fractions:
1260/252 + 648/252 = 1260 + 648/252 = 1908/252 - 1908/252 simplified gives 53/7
- So, 90/18 + 72/28 = 53/7
In mixed form: 74/7
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