Add 5/10 and 15/42
5/10 + 15/42 is 6/7.
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,
5/10 = 5 × 21/10 × 21 = 105/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Add the two like fractions:
105/210 + 75/210 = 105 + 75/210 = 180/210 - 180/210 simplified gives 6/7
- So, 5/10 + 15/42 = 6/7
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