Add 18/40 and 81/14
1st number: 18/40, 2nd number: 5 11/14
18/40 + 81/14 is 873/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
81/14 = 81 × 20/14 × 20 = 1620/280 - Add the two like fractions:
126/280 + 1620/280 = 126 + 1620/280 = 1746/280 - 1746/280 simplified gives 873/140
- So, 18/40 + 81/14 = 873/140
In mixed form: 633/140
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