Add 42/20 and 21/30
1st number: 2 2/20, 2nd number: 21/30
42/20 + 21/30 is 14/5.
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,
42/20 = 42 × 3/20 × 3 = 126/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
21/30 = 21 × 2/30 × 2 = 42/60 - Add the two like fractions:
126/60 + 42/60 = 126 + 42/60 = 168/60 - 168/60 simplified gives 14/5
- So, 42/20 + 21/30 = 14/5
In mixed form: 24/5
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