Add 42/12 and 21/16
1st number: 3 6/12, 2nd number: 1 5/16
42/12 + 21/16 is 77/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
42/12 = 42 × 4/12 × 4 = 168/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
21/16 = 21 × 3/16 × 3 = 63/48 - Add the two like fractions:
168/48 + 63/48 = 168 + 63/48 = 231/48 - 231/48 simplified gives 77/16
- So, 42/12 + 21/16 = 77/16
In mixed form: 413/16
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