Add 63/70 and 20/84
63/70 + 20/84 is 239/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
63/70 = 63 × 6/70 × 6 = 378/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Add the two like fractions:
378/420 + 100/420 = 378 + 100/420 = 478/420 - 478/420 simplified gives 239/210
- So, 63/70 + 20/84 = 239/210
In mixed form: 129/210
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