Add 42/20 and 72/70
1st number: 2 2/20, 2nd number: 1 2/70
42/20 + 72/70 is 219/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
72/70 = 72 × 2/70 × 2 = 144/140 - Add the two like fractions:
294/140 + 144/140 = 294 + 144/140 = 438/140 - 438/140 simplified gives 219/70
- So, 42/20 + 72/70 = 219/70
In mixed form: 39/70
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