Add 21/2 and 45/8
1st number: 10 1/2, 2nd number: 5 5/8
21/2 + 45/8 is 129/8.
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,
21/2 = 21 × 4/2 × 4 = 84/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
45/8 = 45 × 1/8 × 1 = 45/8 - Add the two like fractions:
84/8 + 45/8 = 84 + 45/8 = 129/8 - So, 21/2 + 45/8 = 129/8
In mixed form: 161/8
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