Add 70/84 and 20/56
70/84 + 20/56 is 25/21.
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,
70/84 = 70 × 2/84 × 2 = 140/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168 - Add the two like fractions:
140/168 + 60/168 = 140 + 60/168 = 200/168 - 200/168 simplified gives 25/21
- So, 70/84 + 20/56 = 25/21
In mixed form: 14/21
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