Add 81/14 and 45/40
1st number: 5 11/14, 2nd number: 1 5/40
81/14 + 45/40 is 387/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
81/14 = 81 × 20/14 × 20 = 1620/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
45/40 = 45 × 7/40 × 7 = 315/280 - Add the two like fractions:
1620/280 + 315/280 = 1620 + 315/280 = 1935/280 - 1935/280 simplified gives 387/56
- So, 81/14 + 45/40 = 387/56
In mixed form: 651/56
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