Add 90/12 and 9/8, Solve 7 6/12 + 1 1/8 as a fraction

Add 90/12 and 9/8

1^st number: 7 6/12, 2^nd number: 1 1/8

90/12 + 9/8 is 69/8.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 12 × 2 = 24,
90/12 = 90 × 2/12 × 2 = 180/24
Likewise, for the 2nd fraction, since 8 × 3 = 24,
9/8 = 9 × 3/8 × 3 = 27/24
Add the two like fractions:
180/24 + 27/24 = 180 + 27/24 = 207/24
207/24 simplified gives 69/8
So, 90/12 + 9/8 = 69/8
In mixed form: 85/8

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