Add 2/63 and 20/45
2/63 + 20/45 is 10/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
2/63 = 2 × 5/63 × 5 = 10/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
20/45 = 20 × 7/45 × 7 = 140/315 - Add the two like fractions:
10/315 + 140/315 = 10 + 140/315 = 150/315 - 150/315 simplified gives 10/21
- So, 2/63 + 20/45 = 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/63+20/45 2/63+40/45 2/63+20/90 6/63+20/45 2/63+60/45 10/63+20/45 14/63+20/45