Add 42/18 and 21/5
1st number: 2 6/18, 2nd number: 4 1/5
42/18 + 21/5 is 98/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
21/5 = 21 × 18/5 × 18 = 378/90 - Add the two like fractions:
210/90 + 378/90 = 210 + 378/90 = 588/90 - 588/90 simplified gives 98/15
- So, 42/18 + 21/5 = 98/15
In mixed form: 68/15
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