Add 54/5 and 21/8
1st number: 10 4/5, 2nd number: 2 5/8
54/5 + 21/8 is 537/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
54/5 = 54 × 8/5 × 8 = 432/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Add the two like fractions:
432/40 + 105/40 = 432 + 105/40 = 537/40 - So, 54/5 + 21/8 = 537/40
In mixed form: 1317/40
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