Add 72/49 and 20/90
1st number: 1 23/49, 2nd number: 20/90
72/49 + 20/90 is 746/441.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
72/49 = 72 × 90/49 × 90 = 6480/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
20/90 = 20 × 49/90 × 49 = 980/4410 - Add the two like fractions:
6480/4410 + 980/4410 = 6480 + 980/4410 = 7460/4410 - 7460/4410 simplified gives 746/441
- So, 72/49 + 20/90 = 746/441
In mixed form: 1305/441
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