Add 42/56 and 90/12
1st number: 42/56, 2nd number: 7 6/12
42/56 + 90/12 is 33/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
42/56 = 42 × 3/56 × 3 = 126/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
90/12 = 90 × 14/12 × 14 = 1260/168 - Add the two like fractions:
126/168 + 1260/168 = 126 + 1260/168 = 1386/168 - 1386/168 simplified gives 33/4
- So, 42/56 + 90/12 = 33/4
In mixed form: 81/4
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