Add 21/24 and 70/40
1st number: 21/24, 2nd number: 1 30/40
21/24 + 70/40 is 21/8.
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,
21/24 = 21 × 5/24 × 5 = 105/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120 - Add the two like fractions:
105/120 + 210/120 = 105 + 210/120 = 315/120 - 315/120 simplified gives 21/8
- So, 21/24 + 70/40 = 21/8
In mixed form: 25/8
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