Add 1/15 and 21/70
1/15 + 21/70 is 11/30.
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,
1/15 = 1 × 14/15 × 14 = 14/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
21/70 = 21 × 3/70 × 3 = 63/210 - Add the two like fractions:
14/210 + 63/210 = 14 + 63/210 = 77/210 - 77/210 simplified gives 11/30
- So, 1/15 + 21/70 = 11/30
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