Add 81/54 and 70/40
1st number: 1 27/54, 2nd number: 1 30/40
81/54 + 70/40 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
81/54 = 81 × 20/54 × 20 = 1620/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
70/40 = 70 × 27/40 × 27 = 1890/1080 - Add the two like fractions:
1620/1080 + 1890/1080 = 1620 + 1890/1080 = 3510/1080 - 3510/1080 simplified gives 13/4
- So, 81/54 + 70/40 = 13/4
In mixed form: 31/4
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