Add 54/8 and 21/56
1st number: 6 6/8, 2nd number: 21/56
54/8 + 21/56 is 57/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
54/8 = 54 × 7/8 × 7 = 378/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Add the two like fractions:
378/56 + 21/56 = 378 + 21/56 = 399/56 - 399/56 simplified gives 57/8
- So, 54/8 + 21/56 = 57/8
In mixed form: 71/8
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