Add 60/90 and 81/7, Solve 60/90 + 11 4/7 as a fraction

Add 60/90 and 81/7

1^st number: 60/90, 2^nd number: 11 4/7

60/90 + 81/7 is 257/21.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
60/90 = 60 × 7/90 × 7 = 420/630
Likewise, for the 2nd fraction, since 7 × 90 = 630,
81/7 = 81 × 90/7 × 90 = 7290/630
Add the two like fractions:
420/630 + 7290/630 = 420 + 7290/630 = 7710/630
7710/630 simplified gives 257/21
So, 60/90 + 81/7 = 257/21
In mixed form: 125/21

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