Add 18/90 and 20/15
1st number: 18/90, 2nd number: 1 5/15
18/90 + 20/15 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
18/90 = 18 × 1/90 × 1 = 18/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
20/15 = 20 × 6/15 × 6 = 120/90 - Add the two like fractions:
18/90 + 120/90 = 18 + 120/90 = 138/90 - 138/90 simplified gives 23/15
- So, 18/90 + 20/15 = 23/15
In mixed form: 18/15
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