Add 21/30 and 45/3
1st number: 21/30, 2nd number: 15 0/3
21/30 + 45/3 is 157/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
45/3 = 45 × 10/3 × 10 = 450/30 - Add the two like fractions:
21/30 + 450/30 = 21 + 450/30 = 471/30 - 471/30 simplified gives 157/10
- So, 21/30 + 45/3 = 157/10
In mixed form: 157/10
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