Add 20/7 and 5/45
1st number: 2 6/7, 2nd number: 5/45
20/7 + 5/45 is 187/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
20/7 = 20 × 45/7 × 45 = 900/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
5/45 = 5 × 7/45 × 7 = 35/315 - Add the two like fractions:
900/315 + 35/315 = 900 + 35/315 = 935/315 - 935/315 simplified gives 187/63
- So, 20/7 + 5/45 = 187/63
In mixed form: 261/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+5/45 20/7+10/45 20/14+5/45 20/7+5/90 60/7+5/45 20/7+15/45 20/21+5/45 20/7+25/45 20/35+5/45 20/7+35/45 20/49+5/45