Add 18/8 and 21/63
1st number: 2 2/8, 2nd number: 21/63
18/8 + 21/63 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
18/8 = 18 × 63/8 × 63 = 1134/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Add the two like fractions:
1134/504 + 168/504 = 1134 + 168/504 = 1302/504 - 1302/504 simplified gives 31/12
- So, 18/8 + 21/63 = 31/12
In mixed form: 27/12
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