Add 42/70 and 54/36
1st number: 42/70, 2nd number: 1 18/36
42/70 + 54/36 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
42/70 = 42 × 18/70 × 18 = 756/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
54/36 = 54 × 35/36 × 35 = 1890/1260 - Add the two like fractions:
756/1260 + 1890/1260 = 756 + 1890/1260 = 2646/1260 - 2646/1260 simplified gives 21/10
- So, 42/70 + 54/36 = 21/10
In mixed form: 21/10
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