Add 81/7 and 8/80, Solve 11 4/7 + 8/80 as a fraction

Add 81/7 and 8/80

1^st number: 11 4/7, 2^nd number: 8/80

81/7 + 8/80 is 817/70.

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,
81/7 = 81 × 80/7 × 80 = 6480/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
8/80 = 8 × 7/80 × 7 = 56/560
Add the two like fractions:
6480/560 + 56/560 = 6480 + 56/560 = 6536/560
6536/560 simplified gives 817/70
So, 81/7 + 8/80 = 817/70
In mixed form: 1147/70

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