Add 30/56 and 7/21
30/56 + 7/21 is 73/84.
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,
30/56 = 30 × 3/56 × 3 = 90/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
7/21 = 7 × 8/21 × 8 = 56/168 - Add the two like fractions:
90/168 + 56/168 = 90 + 56/168 = 146/168 - 146/168 simplified gives 73/84
- So, 30/56 + 7/21 = 73/84
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