Add 21/10 and 9/30
1st number: 2 1/10, 2nd number: 9/30
21/10 + 9/30 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
9/30 = 9 × 1/30 × 1 = 9/30 - Add the two like fractions:
63/30 + 9/30 = 63 + 9/30 = 72/30 - 72/30 simplified gives 12/5
- So, 21/10 + 9/30 = 12/5
In mixed form: 22/5
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