Add 81/45 and 27/90
1st number: 1 36/45, 2nd number: 27/90
81/45 + 27/90 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
81/45 = 81 × 2/45 × 2 = 162/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
27/90 = 27 × 1/90 × 1 = 27/90 - Add the two like fractions:
162/90 + 27/90 = 162 + 27/90 = 189/90 - 189/90 simplified gives 21/10
- So, 81/45 + 27/90 = 21/10
In mixed form: 21/10
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