Add 42/24 and 21/40
1st number: 1 18/24, 2nd number: 21/40
42/24 + 21/40 is 91/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
210/120 + 63/120 = 210 + 63/120 = 273/120 - 273/120 simplified gives 91/40
- So, 42/24 + 21/40 = 91/40
In mixed form: 211/40
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