Add 81/9 and 2/20
1st number: 9 0/9, 2nd number: 2/20
81/9 + 2/20 is 91/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
81/9 = 81 × 20/9 × 20 = 1620/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Add the two like fractions:
1620/180 + 18/180 = 1620 + 18/180 = 1638/180 - 1638/180 simplified gives 91/10
- So, 81/9 + 2/20 = 91/10
In mixed form: 91/10
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