Add 21/20 and 8/15
1st number: 1 1/20, 2nd number: 8/15
21/20 + 8/15 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
8/15 = 8 × 4/15 × 4 = 32/60 - Add the two like fractions:
63/60 + 32/60 = 63 + 32/60 = 95/60 - 95/60 simplified gives 19/12
- So, 21/20 + 8/15 = 19/12
In mixed form: 17/12
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