Add 3/42 and 5/10
3/42 + 5/10 is 4/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
5/10 = 5 × 21/10 × 21 = 105/210 - Add the two like fractions:
15/210 + 105/210 = 15 + 105/210 = 120/210 - 120/210 simplified gives 4/7
- So, 3/42 + 5/10 = 4/7
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