Add 56/45 and 21/18
1st number: 1 11/45, 2nd number: 1 3/18
56/45 + 21/18 is 217/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
56/45 = 56 × 2/45 × 2 = 112/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
21/18 = 21 × 5/18 × 5 = 105/90 - Add the two like fractions:
112/90 + 105/90 = 112 + 105/90 = 217/90 - So, 56/45 + 21/18 = 217/90
In mixed form: 237/90
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