Add 42/84 and 28/63
42/84 + 28/63 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
42/84 = 42 × 3/84 × 3 = 126/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
28/63 = 28 × 4/63 × 4 = 112/252 - Add the two like fractions:
126/252 + 112/252 = 126 + 112/252 = 238/252 - 238/252 simplified gives 17/18
- So, 42/84 + 28/63 = 17/18
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