Add 4/21 and 63/56
1st number: 4/21, 2nd number: 1 7/56
4/21 + 63/56 is 221/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
4/21 = 4 × 8/21 × 8 = 32/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
63/56 = 63 × 3/56 × 3 = 189/168 - Add the two like fractions:
32/168 + 189/168 = 32 + 189/168 = 221/168 - So, 4/21 + 63/56 = 221/168
In mixed form: 153/168
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