Add 36/63 and 98/80, Solve 36/63 + 1 18/80 as a fraction

Add 36/63 and 98/80

1^st number: 36/63, 2^nd number: 1 18/80

36/63 + 98/80 is 503/280.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040

Next, find the equivalent fraction of both fractional numbers with denominator 5040
For the 1st fraction, since 63 × 80 = 5040,
36/63 = 36 × 80/63 × 80 = 2880/5040
Likewise, for the 2nd fraction, since 80 × 63 = 5040,
98/80 = 98 × 63/80 × 63 = 6174/5040
Add the two like fractions:
2880/5040 + 6174/5040 = 2880 + 6174/5040 = 9054/5040
9054/5040 simplified gives 503/280
So, 36/63 + 98/80 = 503/280
In mixed form: 1223/280

MathStep (Works offline)

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