Add 40/7 and 15/54, Solve 5 5/7 + 15/54 as a fraction

Add 40/7 and 15/54

1^st number: 5 5/7, 2^nd number: 15/54

40/7 + 15/54 is 755/126.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
40/7 = 40 × 54/7 × 54 = 2160/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378
Add the two like fractions:
2160/378 + 105/378 = 2160 + 105/378 = 2265/378
2265/378 simplified gives 755/126
So, 40/7 + 15/54 = 755/126
In mixed form: 5125/126

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