Add 70/7 and 64/20
1st number: 10 0/7, 2nd number: 3 4/20
70/7 + 64/20 is 66/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
70/7 = 70 × 20/7 × 20 = 1400/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
64/20 = 64 × 7/20 × 7 = 448/140 - Add the two like fractions:
1400/140 + 448/140 = 1400 + 448/140 = 1848/140 - 1848/140 simplified gives 66/5
- So, 70/7 + 64/20 = 66/5
In mixed form: 131/5
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