Add 7/40 and 21/24
7/40 + 21/24 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Add the two like fractions:
21/120 + 105/120 = 21 + 105/120 = 126/120 - 126/120 simplified gives 21/20
- So, 7/40 + 21/24 = 21/20
In mixed form: 11/20
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