Add 7/20 and 42/40
1st number: 7/20, 2nd number: 1 2/40
7/20 + 42/40 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
7/20 = 7 × 2/20 × 2 = 14/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
14/40 + 42/40 = 14 + 42/40 = 56/40 - 56/40 simplified gives 7/5
- So, 7/20 + 42/40 = 7/5
In mixed form: 12/5
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