Add 72/84 and 6/63
72/84 + 6/63 is 20/21.
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,
72/84 = 72 × 3/84 × 3 = 216/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
6/63 = 6 × 4/63 × 4 = 24/252 - Add the two like fractions:
216/252 + 24/252 = 216 + 24/252 = 240/252 - 240/252 simplified gives 20/21
- So, 72/84 + 6/63 = 20/21
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