Add 56/35 and 3/63, Solve 1 21/35 + 3/63 as a fraction

Add 56/35 and 3/63

1^st number: 1 21/35, 2^nd number: 3/63

56/35 + 3/63 is 173/105.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 35 × 9 = 315,
56/35 = 56 × 9/35 × 9 = 504/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
3/63 = 3 × 5/63 × 5 = 15/315
Add the two like fractions:
504/315 + 15/315 = 504 + 15/315 = 519/315
519/315 simplified gives 173/105
So, 56/35 + 3/63 = 173/105
In mixed form: 168/105

MathStep (Works offline)

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