Add 9/80 and 70/49, Solve 9/80 + 1 21/49 as a fraction

Add 9/80 and 70/49

1^st number: 9/80, 2^nd number: 1 21/49

9/80 + 70/49 is 863/560.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 49 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 80 × 49 = 3920,
9/80 = 9 × 49/80 × 49 = 441/3920
Likewise, for the 2nd fraction, since 49 × 80 = 3920,
70/49 = 70 × 80/49 × 80 = 5600/3920
Add the two like fractions:
441/3920 + 5600/3920 = 441 + 5600/3920 = 6041/3920
6041/3920 simplified gives 863/560
So, 9/80 + 70/49 = 863/560
In mixed form: 1303/560

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