Add 8/20 and 90/72
1st number: 8/20, 2nd number: 1 18/72
8/20 + 90/72 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
8/20 = 8 × 18/20 × 18 = 144/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
144/360 + 450/360 = 144 + 450/360 = 594/360 - 594/360 simplified gives 33/20
- So, 8/20 + 90/72 = 33/20
In mixed form: 113/20
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