Add 42/90 and 72/49
1st number: 42/90, 2nd number: 1 23/49
42/90 + 72/49 is 1423/735.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
42/90 = 42 × 49/90 × 49 = 2058/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
72/49 = 72 × 90/49 × 90 = 6480/4410 - Add the two like fractions:
2058/4410 + 6480/4410 = 2058 + 6480/4410 = 8538/4410 - 8538/4410 simplified gives 1423/735
- So, 42/90 + 72/49 = 1423/735
In mixed form: 1688/735
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