Add 21/90 and 35/30
1st number: 21/90, 2nd number: 1 5/30
21/90 + 35/30 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
35/30 = 35 × 3/30 × 3 = 105/90 - Add the two like fractions:
21/90 + 105/90 = 21 + 105/90 = 126/90 - 126/90 simplified gives 7/5
- So, 21/90 + 35/30 = 7/5
In mixed form: 12/5
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