Add 72/28 and 18/63
1st number: 2 16/28, 2nd number: 18/63
72/28 + 18/63 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
72/28 = 72 × 9/28 × 9 = 648/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Add the two like fractions:
648/252 + 72/252 = 648 + 72/252 = 720/252 - 720/252 simplified gives 20/7
- So, 72/28 + 18/63 = 20/7
In mixed form: 26/7
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