Add 21/84 and 5/56
21/84 + 5/56 is 19/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
21/84 = 21 × 2/84 × 2 = 42/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
5/56 = 5 × 3/56 × 3 = 15/168 - Add the two like fractions:
42/168 + 15/168 = 42 + 15/168 = 57/168 - 57/168 simplified gives 19/56
- So, 21/84 + 5/56 = 19/56
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