Add 42/60 and 21/18
1st number: 42/60, 2nd number: 1 3/18
42/60 + 21/18 is 28/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
21/18 = 21 × 10/18 × 10 = 210/180 - Add the two like fractions:
126/180 + 210/180 = 126 + 210/180 = 336/180 - 336/180 simplified gives 28/15
- So, 42/60 + 21/18 = 28/15
In mixed form: 113/15
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