Add 42/20 and 45/30
1st number: 2 2/20, 2nd number: 1 15/30
42/20 + 45/30 is 18/5.
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,
45/30 = 45 × 2/30 × 2 = 90/60 - Add the two like fractions:
126/60 + 90/60 = 126 + 90/60 = 216/60 - 216/60 simplified gives 18/5
- So, 42/20 + 45/30 = 18/5
In mixed form: 33/5
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