Add 8/18 and 45/21
1st number: 8/18, 2nd number: 2 3/21
8/18 + 45/21 is 163/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
8/18 = 8 × 7/18 × 7 = 56/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
45/21 = 45 × 6/21 × 6 = 270/126 - Add the two like fractions:
56/126 + 270/126 = 56 + 270/126 = 326/126 - 326/126 simplified gives 163/63
- So, 8/18 + 45/21 = 163/63
In mixed form: 237/63
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