Add 72/70 and 15/20
1st number: 1 2/70, 2nd number: 15/20
72/70 + 15/20 is 249/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
72/70 = 72 × 2/70 × 2 = 144/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
15/20 = 15 × 7/20 × 7 = 105/140 - Add the two like fractions:
144/140 + 105/140 = 144 + 105/140 = 249/140 - So, 72/70 + 15/20 = 249/140
In mixed form: 1109/140
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