Add 15/7 and 5/45
1st number: 2 1/7, 2nd number: 5/45
15/7 + 5/45 is 142/63.
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,
15/7 = 15 × 45/7 × 45 = 675/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
5/45 = 5 × 7/45 × 7 = 35/315 - Add the two like fractions:
675/315 + 35/315 = 675 + 35/315 = 710/315 - 710/315 simplified gives 142/63
- So, 15/7 + 5/45 = 142/63
In mixed form: 216/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+5/45 15/7+10/45 15/14+5/45 15/7+5/90 45/7+5/45 15/7+15/45 15/21+5/45 75/7+5/45 15/7+25/45 15/35+5/45 15/7+35/45 15/49+5/45