Add 8/40 and 21/16
1st number: 8/40, 2nd number: 1 5/16
8/40 + 21/16 is 121/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
8/40 = 8 × 2/40 × 2 = 16/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
21/16 = 21 × 5/16 × 5 = 105/80 - Add the two like fractions:
16/80 + 105/80 = 16 + 105/80 = 121/80 - So, 8/40 + 21/16 = 121/80
In mixed form: 141/80
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