Add 12/20 and 42/16
1st number: 12/20, 2nd number: 2 10/16
12/20 + 42/16 is 129/40.
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,
12/20 = 12 × 4/20 × 4 = 48/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
48/80 + 210/80 = 48 + 210/80 = 258/80 - 258/80 simplified gives 129/40
- So, 12/20 + 42/16 = 129/40
In mixed form: 39/40
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