Add 21/63 and 42/8
1st number: 21/63, 2nd number: 5 2/8
21/63 + 42/8 is 67/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
42/8 = 42 × 63/8 × 63 = 2646/504 - Add the two like fractions:
168/504 + 2646/504 = 168 + 2646/504 = 2814/504 - 2814/504 simplified gives 67/12
- So, 21/63 + 42/8 = 67/12
In mixed form: 57/12
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