Add 4/42 and 21/15
1st number: 4/42, 2nd number: 1 6/15
4/42 + 21/15 is 157/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210 - Add the two like fractions:
20/210 + 294/210 = 20 + 294/210 = 314/210 - 314/210 simplified gives 157/105
- So, 4/42 + 21/15 = 157/105
In mixed form: 152/105
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