Add 21/56 and 84/7
1st number: 21/56, 2nd number: 12 0/7
21/56 + 84/7 is 99/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
84/7 = 84 × 8/7 × 8 = 672/56 - Add the two like fractions:
21/56 + 672/56 = 21 + 672/56 = 693/56 - 693/56 simplified gives 99/8
- So, 21/56 + 84/7 = 99/8
In mixed form: 123/8
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