Add 21/40 and 56/3
1st number: 21/40, 2nd number: 18 2/3
21/40 + 56/3 is 2303/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 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 3 × 40 = 120,
56/3 = 56 × 40/3 × 40 = 2240/120 - Add the two like fractions:
63/120 + 2240/120 = 63 + 2240/120 = 2303/120 - So, 21/40 + 56/3 = 2303/120
In mixed form: 1923/120
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