Add 15/5 and 21/90
1st number: 3 0/5, 2nd number: 21/90
15/5 + 21/90 is 97/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
15/5 = 15 × 18/5 × 18 = 270/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
270/90 + 21/90 = 270 + 21/90 = 291/90 - 291/90 simplified gives 97/30
- So, 15/5 + 21/90 = 97/30
In mixed form: 37/30
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