Add 21/3 and 81/56
1st number: 7 0/3, 2nd number: 1 25/56
21/3 + 81/56 is 473/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 3 × 56 = 168,
21/3 = 21 × 56/3 × 56 = 1176/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Add the two like fractions:
1176/168 + 243/168 = 1176 + 243/168 = 1419/168 - 1419/168 simplified gives 473/56
- So, 21/3 + 81/56 = 473/56
In mixed form: 825/56
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