Add 81/18 and 32/20
1st number: 4 9/18, 2nd number: 1 12/20
81/18 + 32/20 is 61/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
81/18 = 81 × 10/18 × 10 = 810/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
32/20 = 32 × 9/20 × 9 = 288/180 - Add the two like fractions:
810/180 + 288/180 = 810 + 288/180 = 1098/180 - 1098/180 simplified gives 61/10
- So, 81/18 + 32/20 = 61/10
In mixed form: 61/10
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