Add 90/27 and 10/84, Solve 3 9/27 + 10/84 as a fraction

Add 90/27 and 10/84

1^st number: 3 9/27, 2^nd number: 10/84

90/27 + 10/84 is 145/42.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 27 × 28 = 756,
90/27 = 90 × 28/27 × 28 = 2520/756
Likewise, for the 2nd fraction, since 84 × 9 = 756,
10/84 = 10 × 9/84 × 9 = 90/756
Add the two like fractions:
2520/756 + 90/756 = 2520 + 90/756 = 2610/756
2610/756 simplified gives 145/42
So, 90/27 + 10/84 = 145/42
In mixed form: 319/42

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