Add 72/40 and 21/8
1st number: 1 32/40, 2nd number: 2 5/8
72/40 + 21/8 is 177/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
72/40 = 72 × 1/40 × 1 = 72/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Add the two like fractions:
72/40 + 105/40 = 72 + 105/40 = 177/40 - So, 72/40 + 21/8 = 177/40
In mixed form: 417/40
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