Add 42/84 and 30/56
42/84 + 30/56 is 29/28.
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,
42/84 = 42 × 2/84 × 2 = 84/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
30/56 = 30 × 3/56 × 3 = 90/168 - Add the two like fractions:
84/168 + 90/168 = 84 + 90/168 = 174/168 - 174/168 simplified gives 29/28
- So, 42/84 + 30/56 = 29/28
In mixed form: 11/28
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