Add 56/15 and 72/70
1st number: 3 11/15, 2nd number: 1 2/70
56/15 + 72/70 is 100/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
56/15 = 56 × 14/15 × 14 = 784/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
72/70 = 72 × 3/70 × 3 = 216/210 - Add the two like fractions:
784/210 + 216/210 = 784 + 216/210 = 1000/210 - 1000/210 simplified gives 100/21
- So, 56/15 + 72/70 = 100/21
In mixed form: 416/21
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