Add 42/20 and 63/84
1st number: 2 2/20, 2nd number: 63/84
42/20 + 63/84 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
42/20 = 42 × 21/20 × 21 = 882/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
63/84 = 63 × 5/84 × 5 = 315/420 - Add the two like fractions:
882/420 + 315/420 = 882 + 315/420 = 1197/420 - 1197/420 simplified gives 57/20
- So, 42/20 + 63/84 = 57/20
In mixed form: 217/20
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