Add 20/18 and 81/45
1st number: 1 2/18, 2nd number: 1 36/45
20/18 + 81/45 is 131/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
81/45 = 81 × 2/45 × 2 = 162/90 - Add the two like fractions:
100/90 + 162/90 = 100 + 162/90 = 262/90 - 262/90 simplified gives 131/45
- So, 20/18 + 81/45 = 131/45
In mixed form: 241/45
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