Add 16/42 and 21/15
1st number: 16/42, 2nd number: 1 6/15
16/42 + 21/15 is 187/105.
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,
16/42 = 16 × 5/42 × 5 = 80/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210 - Add the two like fractions:
80/210 + 294/210 = 80 + 294/210 = 374/210 - 374/210 simplified gives 187/105
- So, 16/42 + 21/15 = 187/105
In mixed form: 182/105
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