Add 8/28 and 42/63
8/28 + 42/63 is 20/21.
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,
42/63 = 42 × 4/63 × 4 = 168/252 - Add the two like fractions:
72/252 + 168/252 = 72 + 168/252 = 240/252 - 240/252 simplified gives 20/21
- So, 8/28 + 42/63 = 20/21
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