Add 3/18 and 20/15
1st number: 3/18, 2nd number: 1 5/15
3/18 + 20/15 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
20/15 = 20 × 6/15 × 6 = 120/90 - Add the two like fractions:
15/90 + 120/90 = 15 + 120/90 = 135/90 - 135/90 simplified gives 3/2
- So, 3/18 + 20/15 = 3/2
In mixed form: 11/2
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