Add 40/7 and 54/81
1st number: 5 5/7, 2nd number: 54/81
40/7 + 54/81 is 134/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
40/7 = 40 × 81/7 × 81 = 3240/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
54/81 = 54 × 7/81 × 7 = 378/567 - Add the two like fractions:
3240/567 + 378/567 = 3240 + 378/567 = 3618/567 - 3618/567 simplified gives 134/21
- So, 40/7 + 54/81 = 134/21
In mixed form: 68/21
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