Add 12/56 and 7/21
12/56 + 7/21 is 23/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
12/56 = 12 × 3/56 × 3 = 36/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
7/21 = 7 × 8/21 × 8 = 56/168 - Add the two like fractions:
36/168 + 56/168 = 36 + 56/168 = 92/168 - 92/168 simplified gives 23/42
- So, 12/56 + 7/21 = 23/42
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