Add 90/84 and 75/60, Solve 1 6/84 + 1 15/60 as a fraction

Add 90/84 and 75/60

1^st number: 1 6/84, 2^nd number: 1 15/60

90/84 + 75/60 is 65/28.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
75/60 = 75 × 7/60 × 7 = 525/420
Add the two like fractions:
450/420 + 525/420 = 450 + 525/420 = 975/420
975/420 simplified gives 65/28
So, 90/84 + 75/60 = 65/28
In mixed form: 29/28

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