Add 20/42 and 18/56
20/42 + 18/56 is 67/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
20/42 = 20 × 4/42 × 4 = 80/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
18/56 = 18 × 3/56 × 3 = 54/168 - Add the two like fractions:
80/168 + 54/168 = 80 + 54/168 = 134/168 - 134/168 simplified gives 67/84
- So, 20/42 + 18/56 = 67/84
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