Add 42/36 and 15/70
1st number: 1 6/36, 2nd number: 15/70
42/36 + 15/70 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
42/36 = 42 × 35/36 × 35 = 1470/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
15/70 = 15 × 18/70 × 18 = 270/1260 - Add the two like fractions:
1470/1260 + 270/1260 = 1470 + 270/1260 = 1740/1260 - 1740/1260 simplified gives 29/21
- So, 42/36 + 15/70 = 29/21
In mixed form: 18/21
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