Add 15/20 and 42/16
1st number: 15/20, 2nd number: 2 10/16
15/20 + 42/16 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
15/20 = 15 × 4/20 × 4 = 60/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
60/80 + 210/80 = 60 + 210/80 = 270/80 - 270/80 simplified gives 27/8
- So, 15/20 + 42/16 = 27/8
In mixed form: 33/8
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