Add 28/18 and 90/12, Solve 1 10/18 + 7 6/12 as a fraction

Add 28/18 and 90/12

1^st number: 1 10/18, 2^nd number: 7 6/12

28/18 + 90/12 is 163/18.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 18 × 2 = 36,
28/18 = 28 × 2/18 × 2 = 56/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36
Add the two like fractions:
56/36 + 270/36 = 56 + 270/36 = 326/36
326/36 simplified gives 163/18
So, 28/18 + 90/12 = 163/18
In mixed form: 91/18

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