Add 36/40 and 21/8
1st number: 36/40, 2nd number: 2 5/8
36/40 + 21/8 is 141/40.
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,
36/40 = 36 × 1/40 × 1 = 36/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Add the two like fractions:
36/40 + 105/40 = 36 + 105/40 = 141/40 - So, 36/40 + 21/8 = 141/40
In mixed form: 321/40
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