Add 80/84 and 54/72, Solve 80/84 + 54/72 as a fraction

Add 80/84 and 54/72

80/84 + 54/72 is 143/84.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 84 × 6 = 504,
80/84 = 80 × 6/84 × 6 = 480/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
54/72 = 54 × 7/72 × 7 = 378/504
Add the two like fractions:
480/504 + 378/504 = 480 + 378/504 = 858/504
858/504 simplified gives 143/84
So, 80/84 + 54/72 = 143/84
In mixed form: 159/84

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