Add 27/20 and 42/40
1st number: 1 7/20, 2nd number: 1 2/40
27/20 + 42/40 is 12/5.
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,
27/20 = 27 × 2/20 × 2 = 54/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
54/40 + 42/40 = 54 + 42/40 = 96/40 - 96/40 simplified gives 12/5
- So, 27/20 + 42/40 = 12/5
In mixed form: 22/5
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