Add 70/72 and 9/80, Solve 70/72 + 9/80 as a fraction

Add 70/72 and 9/80

70/72 + 9/80 is 781/720.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 72 × 10 = 720,
70/72 = 70 × 10/72 × 10 = 700/720
Likewise, for the 2nd fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720
Add the two like fractions:
700/720 + 81/720 = 700 + 81/720 = 781/720
So, 70/72 + 9/80 = 781/720
In mixed form: 161/720

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