Add 15/20 and 42/15
1st number: 15/20, 2nd number: 2 12/15
15/20 + 42/15 is 71/20.
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,
15/20 = 15 × 3/20 × 3 = 45/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
42/15 = 42 × 4/15 × 4 = 168/60 - Add the two like fractions:
45/60 + 168/60 = 45 + 168/60 = 213/60 - 213/60 simplified gives 71/20
- So, 15/20 + 42/15 = 71/20
In mixed form: 311/20
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