Add 90/20 and 72/56
1st number: 4 10/20, 2nd number: 1 16/56
90/20 + 72/56 is 81/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
90/20 = 90 × 14/20 × 14 = 1260/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
72/56 = 72 × 5/56 × 5 = 360/280 - Add the two like fractions:
1260/280 + 360/280 = 1260 + 360/280 = 1620/280 - 1620/280 simplified gives 81/14
- So, 90/20 + 72/56 = 81/14
In mixed form: 511/14
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