Add 27/20 and 42/30
1st number: 1 7/20, 2nd number: 1 12/30
27/20 + 42/30 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
42/30 = 42 × 2/30 × 2 = 84/60 - Add the two like fractions:
81/60 + 84/60 = 81 + 84/60 = 165/60 - 165/60 simplified gives 11/4
- So, 27/20 + 42/30 = 11/4
In mixed form: 23/4
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