Add 80/84 and 63/54, Solve 80/84 + 1 9/54 as a fraction

Add 80/84 and 63/54

1^st number: 80/84, 2^nd number: 1 9/54

80/84 + 63/54 is 89/42.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 84 × 9 = 756,
80/84 = 80 × 9/84 × 9 = 720/756
Likewise, for the 2nd fraction, since 54 × 14 = 756,
63/54 = 63 × 14/54 × 14 = 882/756
Add the two like fractions:
720/756 + 882/756 = 720 + 882/756 = 1602/756
1602/756 simplified gives 89/42
So, 80/84 + 63/54 = 89/42
In mixed form: 25/42

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