Add 40/7 and 81/80, Solve 5 5/7 + 1 1/80 as a fraction

Add 40/7 and 81/80

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

40/7 + 81/80 is 3767/560.

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,
81/80 = 81 × 7/80 × 7 = 567/560
Add the two like fractions:
3200/560 + 567/560 = 3200 + 567/560 = 3767/560
So, 40/7 + 81/80 = 3767/560
In mixed form: 6407/560

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