Add 15/10 and 21/42
1st number: 1 5/10, 2nd number: 21/42
15/10 + 21/42 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210 - Add the two like fractions:
315/210 + 105/210 = 315 + 105/210 = 420/210 - 420/210 simplified gives 2/1
- So, 15/10 + 21/42 = 2/1
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