Add 7/40 and 20/12
1st number: 7/40, 2nd number: 1 8/12
7/40 + 20/12 is 221/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
20/12 = 20 × 10/12 × 10 = 200/120 - Add the two like fractions:
21/120 + 200/120 = 21 + 200/120 = 221/120 - So, 7/40 + 20/12 = 221/120
In mixed form: 1101/120
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