Add 72/70 and 63/20
1st number: 1 2/70, 2nd number: 3 3/20
72/70 + 63/20 is 117/28.
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,
63/20 = 63 × 7/20 × 7 = 441/140 - Add the two like fractions:
144/140 + 441/140 = 144 + 441/140 = 585/140 - 585/140 simplified gives 117/28
- So, 72/70 + 63/20 = 117/28
In mixed form: 45/28
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