Add 42/2 and 81/8
1st number: 21 0/2, 2nd number: 10 1/8
42/2 + 81/8 is 249/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
42/2 = 42 × 4/2 × 4 = 168/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
81/8 = 81 × 1/8 × 1 = 81/8 - Add the two like fractions:
168/8 + 81/8 = 168 + 81/8 = 249/8 - So, 42/2 + 81/8 = 249/8
In mixed form: 311/8
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