Add 25/45 and 5/7
25/45 + 5/7 is 80/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
25/45 = 25 × 7/45 × 7 = 175/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
5/7 = 5 × 45/7 × 45 = 225/315 - Add the two like fractions:
175/315 + 225/315 = 175 + 225/315 = 400/315 - 400/315 simplified gives 80/63
- So, 25/45 + 5/7 = 80/63
In mixed form: 117/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+5/7 25/45+10/7 25/90+5/7 25/45+5/14 75/45+5/7 25/45+15/7 25/45+5/21 25/45+25/7 25/45+5/35 25/45+35/7 25/45+5/49