Add 1/15 and 21/36
1/15 + 21/36 is 13/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
1/15 = 1 × 12/15 × 12 = 12/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
12/180 + 105/180 = 12 + 105/180 = 117/180 - 117/180 simplified gives 13/20
- So, 1/15 + 21/36 = 13/20
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