Add 15/16 and 42/20
1st number: 15/16, 2nd number: 2 2/20
15/16 + 42/20 is 243/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
15/16 = 15 × 5/16 × 5 = 75/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
42/20 = 42 × 4/20 × 4 = 168/80 - Add the two like fractions:
75/80 + 168/80 = 75 + 168/80 = 243/80 - So, 15/16 + 42/20 = 243/80
In mixed form: 33/80
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