Add 45/63 and 30/35
45/63 + 30/35 is 11/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
45/63 = 45 × 5/63 × 5 = 225/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
30/35 = 30 × 9/35 × 9 = 270/315 - Add the two like fractions:
225/315 + 270/315 = 225 + 270/315 = 495/315 - 495/315 simplified gives 11/7
- So, 45/63 + 30/35 = 11/7
In mixed form: 14/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+30/35 45/63+60/35 45/63+30/70 45/63+90/35