Add 21/40 and 30/24
1st number: 21/40, 2nd number: 1 6/24
21/40 + 30/24 is 71/40.
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,
21/40 = 21 × 3/40 × 3 = 63/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
30/24 = 30 × 5/24 × 5 = 150/120 - Add the two like fractions:
63/120 + 150/120 = 63 + 150/120 = 213/120 - 213/120 simplified gives 71/40
- So, 21/40 + 30/24 = 71/40
In mixed form: 131/40
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