Add 64/70 and 42/20
1st number: 64/70, 2nd number: 2 2/20
64/70 + 42/20 is 211/70.
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,
42/20 = 42 × 7/20 × 7 = 294/140 - Add the two like fractions:
128/140 + 294/140 = 128 + 294/140 = 422/140 - 422/140 simplified gives 211/70
- So, 64/70 + 42/20 = 211/70
In mixed form: 31/70
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