Add 21/10 and 70/15
1st number: 2 1/10, 2nd number: 4 10/15
21/10 + 70/15 is 203/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 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 15 × 2 = 30,
70/15 = 70 × 2/15 × 2 = 140/30 - Add the two like fractions:
63/30 + 140/30 = 63 + 140/30 = 203/30 - So, 21/10 + 70/15 = 203/30
In mixed form: 623/30
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