Add 64/70 and 28/20
1st number: 64/70, 2nd number: 1 8/20
64/70 + 28/20 is 81/35.
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,
64/70 = 64 × 2/70 × 2 = 128/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Add the two like fractions:
128/140 + 196/140 = 128 + 196/140 = 324/140 - 324/140 simplified gives 81/35
- So, 64/70 + 28/20 = 81/35
In mixed form: 211/35
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