Add 40/7 and 54/80, Solve 5 5/7 + 54/80 as a fraction

Add 40/7 and 54/80

1^st number: 5 5/7, 2^nd number: 54/80

40/7 + 54/80 is 1789/280.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
40/7 = 40 × 80/7 × 80 = 3200/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
54/80 = 54 × 7/80 × 7 = 378/560
Add the two like fractions:
3200/560 + 378/560 = 3200 + 378/560 = 3578/560
3578/560 simplified gives 1789/280
So, 40/7 + 54/80 = 1789/280
In mixed form: 6109/280

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