Add 75/49 and 21/80, Solve 1 26/49 + 21/80 as a fraction

Add 75/49 and 21/80

1^st number: 1 26/49, 2^nd number: 21/80

75/49 + 21/80 is 7029/3920.

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

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 49 × 80 = 3920,
75/49 = 75 × 80/49 × 80 = 6000/3920
Likewise, for the 2nd fraction, since 80 × 49 = 3920,
21/80 = 21 × 49/80 × 49 = 1029/3920
Add the two like fractions:
6000/3920 + 1029/3920 = 6000 + 1029/3920 = 7029/3920
So, 75/49 + 21/80 = 7029/3920
In mixed form: 13109/3920

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad