Add 15/21 and 36/70
15/21 + 36/70 is 43/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
15/21 = 15 × 10/21 × 10 = 150/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
36/70 = 36 × 3/70 × 3 = 108/210 - Add the two like fractions:
150/210 + 108/210 = 150 + 108/210 = 258/210 - 258/210 simplified gives 43/35
- So, 15/21 + 36/70 = 43/35
In mixed form: 18/35
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