Add 18/9 and 42/10
1st number: 2 0/9, 2nd number: 4 2/10
18/9 + 42/10 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
18/9 = 18 × 10/9 × 10 = 180/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
42/10 = 42 × 9/10 × 9 = 378/90 - Add the two like fractions:
180/90 + 378/90 = 180 + 378/90 = 558/90 - 558/90 simplified gives 31/5
- So, 18/9 + 42/10 = 31/5
In mixed form: 61/5
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