Add 18/10 and 20/90
1st number: 1 8/10, 2nd number: 20/90
18/10 + 20/90 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
18/10 = 18 × 9/10 × 9 = 162/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Add the two like fractions:
162/90 + 20/90 = 162 + 20/90 = 182/90 - 182/90 simplified gives 91/45
- So, 18/10 + 20/90 = 91/45
In mixed form: 21/45
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