Add 90/80 and 81/56, Solve 1 10/80 + 1 25/56 as a fraction

Add 90/80 and 81/56

1^st number: 1 10/80, 2^nd number: 1 25/56

90/80 + 81/56 is 18/7.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 56 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560
Likewise, for the 2nd fraction, since 56 × 10 = 560,
81/56 = 81 × 10/56 × 10 = 810/560
Add the two like fractions:
630/560 + 810/560 = 630 + 810/560 = 1440/560
1440/560 simplified gives 18/7
So, 90/80 + 81/56 = 18/7
In mixed form: 24/7

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