Add 15/32 and 81/40
1st number: 15/32, 2nd number: 2 1/40
15/32 + 81/40 is 399/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 40 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
15/32 = 15 × 5/32 × 5 = 75/160 - Likewise, for the 2nd fraction, since 40 × 4 = 160,
81/40 = 81 × 4/40 × 4 = 324/160 - Add the two like fractions:
75/160 + 324/160 = 75 + 324/160 = 399/160 - So, 15/32 + 81/40 = 399/160
In mixed form: 279/160
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