Add 64/42 and 3/90
1st number: 1 22/42, 2nd number: 3/90
64/42 + 3/90 is 109/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
64/42 = 64 × 15/42 × 15 = 960/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
3/90 = 3 × 7/90 × 7 = 21/630 - Add the two like fractions:
960/630 + 21/630 = 960 + 21/630 = 981/630 - 981/630 simplified gives 109/70
- So, 64/42 + 3/90 = 109/70
In mixed form: 139/70
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