Add 8/28 and 21/63
8/28 + 21/63 is 13/21.
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,
8/28 = 8 × 9/28 × 9 = 72/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252 - Add the two like fractions:
72/252 + 84/252 = 72 + 84/252 = 156/252 - 156/252 simplified gives 13/21
- So, 8/28 + 21/63 = 13/21
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