Add 7/5 and 42/20
1st number: 1 2/5, 2nd number: 2 2/20
7/5 + 42/20 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
7/5 = 7 × 4/5 × 4 = 28/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
42/20 = 42 × 1/20 × 1 = 42/20 - Add the two like fractions:
28/20 + 42/20 = 28 + 42/20 = 70/20 - 70/20 simplified gives 7/2
- So, 7/5 + 42/20 = 7/2
In mixed form: 31/2
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