Add 70/21 and 45/56
1st number: 3 7/21, 2nd number: 45/56
70/21 + 45/56 is 695/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
70/21 = 70 × 8/21 × 8 = 560/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Add the two like fractions:
560/168 + 135/168 = 560 + 135/168 = 695/168 - So, 70/21 + 45/56 = 695/168
In mixed form: 423/168
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