Add 21/3 and 10/5
1st number: 7 0/3, 2nd number: 2 0/5
21/3 + 10/5 is 9/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
21/3 = 21 × 5/3 × 5 = 105/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
10/5 = 10 × 3/5 × 3 = 30/15 - Add the two like fractions:
105/15 + 30/15 = 105 + 30/15 = 135/15 - 135/15 simplified gives 9/1
- So, 21/3 + 10/5 = 9/1
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