Add 9/63 and 20/84
9/63 + 20/84 is 8/21.
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,
9/63 = 9 × 4/63 × 4 = 36/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Add the two like fractions:
36/252 + 60/252 = 36 + 60/252 = 96/252 - 96/252 simplified gives 8/21
- So, 9/63 + 20/84 = 8/21
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