Add 42/63 and 1/84
42/63 + 1/84 is 19/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
42/63 = 42 × 4/63 × 4 = 168/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
1/84 = 1 × 3/84 × 3 = 3/252 - Add the two like fractions:
168/252 + 3/252 = 168 + 3/252 = 171/252 - 171/252 simplified gives 19/28
- So, 42/63 + 1/84 = 19/28
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