Add 90/30 and 21/10
1st number: 3 0/30, 2nd number: 2 1/10
90/30 + 21/10 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Add the two like fractions:
90/30 + 63/30 = 90 + 63/30 = 153/30 - 153/30 simplified gives 51/10
- So, 90/30 + 21/10 = 51/10
In mixed form: 51/10
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