Add 90/28 and 20/35
1st number: 3 6/28, 2nd number: 20/35
90/28 + 20/35 is 53/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
20/35 = 20 × 4/35 × 4 = 80/140 - Add the two like fractions:
450/140 + 80/140 = 450 + 80/140 = 530/140 - 530/140 simplified gives 53/14
- So, 90/28 + 20/35 = 53/14
In mixed form: 311/14
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