Add 21/12 and 20/56
1st number: 1 9/12, 2nd number: 20/56
21/12 + 20/56 is 59/28.
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,
21/12 = 21 × 14/12 × 14 = 294/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168 - Add the two like fractions:
294/168 + 60/168 = 294 + 60/168 = 354/168 - 354/168 simplified gives 59/28
- So, 21/12 + 20/56 = 59/28
In mixed form: 23/28
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