Add 90/84 and 6/70, Solve 1 6/84 + 6/70 as a fraction

Add 90/84 and 6/70

1^st number: 1 6/84, 2^nd number: 6/70

90/84 + 6/70 is 81/70.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 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 70 × 6 = 420,
6/70 = 6 × 6/70 × 6 = 36/420
Add the two like fractions:
450/420 + 36/420 = 450 + 36/420 = 486/420
486/420 simplified gives 81/70
So, 90/84 + 6/70 = 81/70
In mixed form: 111/70

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