Add 15/3 and 21/90
1st number: 5 0/3, 2nd number: 21/90
15/3 + 21/90 is 157/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
15/3 = 15 × 30/3 × 30 = 450/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
450/90 + 21/90 = 450 + 21/90 = 471/90 - 471/90 simplified gives 157/30
- So, 15/3 + 21/90 = 157/30
In mixed form: 57/30
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