Add 10/21 and 54/56
10/21 + 54/56 is 121/84.
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,
10/21 = 10 × 8/21 × 8 = 80/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
54/56 = 54 × 3/56 × 3 = 162/168 - Add the two like fractions:
80/168 + 162/168 = 80 + 162/168 = 242/168 - 242/168 simplified gives 121/84
- So, 10/21 + 54/56 = 121/84
In mixed form: 137/84
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