Add 15/12 and 90/56
1st number: 1 3/12, 2nd number: 1 34/56
15/12 + 90/56 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
15/12 = 15 × 14/12 × 14 = 210/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
90/56 = 90 × 3/56 × 3 = 270/168 - Add the two like fractions:
210/168 + 270/168 = 210 + 270/168 = 480/168 - 480/168 simplified gives 20/7
- So, 15/12 + 90/56 = 20/7
In mixed form: 26/7
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