Add 72/12 and 42/16
1st number: 6 0/12, 2nd number: 2 10/16
72/12 + 42/16 is 69/8.
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,
72/12 = 72 × 4/12 × 4 = 288/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
42/16 = 42 × 3/16 × 3 = 126/48 - Add the two like fractions:
288/48 + 126/48 = 288 + 126/48 = 414/48 - 414/48 simplified gives 69/8
- So, 72/12 + 42/16 = 69/8
In mixed form: 85/8
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