Add 56/12 and 21/40
1st number: 4 8/12, 2nd number: 21/40
56/12 + 21/40 is 623/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
56/12 = 56 × 10/12 × 10 = 560/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
560/120 + 63/120 = 560 + 63/120 = 623/120 - So, 56/12 + 21/40 = 623/120
In mixed form: 523/120
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