Add 42/40 and 15/20
1st number: 1 2/40, 2nd number: 15/20
42/40 + 15/20 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
15/20 = 15 × 2/20 × 2 = 30/40 - Add the two like fractions:
42/40 + 30/40 = 42 + 30/40 = 72/40 - 72/40 simplified gives 9/5
- So, 42/40 + 15/20 = 9/5
In mixed form: 14/5
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