Add 20/15 and 15/70
1st number: 1 5/15, 2nd number: 15/70
20/15 + 15/70 is 65/42.
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,
20/15 = 20 × 14/15 × 14 = 280/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210 - Add the two like fractions:
280/210 + 45/210 = 280 + 45/210 = 325/210 - 325/210 simplified gives 65/42
- So, 20/15 + 15/70 = 65/42
In mixed form: 123/42
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