Add 81/2 and 40/7
1st number: 40 1/2, 2nd number: 5 5/7
81/2 + 40/7 is 647/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
81/2 = 81 × 7/2 × 7 = 567/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
40/7 = 40 × 2/7 × 2 = 80/14 - Add the two like fractions:
567/14 + 80/14 = 567 + 80/14 = 647/14 - So, 81/2 + 40/7 = 647/14
In mixed form: 463/14
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