Add 20/84 and 12/56
20/84 + 12/56 is 19/42.
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,
20/84 = 20 × 2/84 × 2 = 40/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
12/56 = 12 × 3/56 × 3 = 36/168 - Add the two like fractions:
40/168 + 36/168 = 40 + 36/168 = 76/168 - 76/168 simplified gives 19/42
- So, 20/84 + 12/56 = 19/42
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