Add 4/15 and 21/18
1st number: 4/15, 2nd number: 1 3/18
4/15 + 21/18 is 43/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
4/15 = 4 × 6/15 × 6 = 24/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
21/18 = 21 × 5/18 × 5 = 105/90 - Add the two like fractions:
24/90 + 105/90 = 24 + 105/90 = 129/90 - 129/90 simplified gives 43/30
- So, 4/15 + 21/18 = 43/30
In mixed form: 113/30
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