Add 90/15 and 21/30
1st number: 6 0/15, 2nd number: 21/30
90/15 + 21/30 is 67/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
90/15 = 90 × 2/15 × 2 = 180/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Add the two like fractions:
180/30 + 21/30 = 180 + 21/30 = 201/30 - 201/30 simplified gives 67/10
- So, 90/15 + 21/30 = 67/10
In mixed form: 67/10
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