Add 4/45 and 5/7
4/45 + 5/7 is 253/315.
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,
4/45 = 4 × 7/45 × 7 = 28/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
5/7 = 5 × 45/7 × 45 = 225/315 - Add the two like fractions:
28/315 + 225/315 = 28 + 225/315 = 253/315 - So, 4/45 + 5/7 = 253/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45+5/7 4/45+10/7 4/90+5/7 4/45+5/14 12/45+5/7 4/45+15/7 4/45+5/21 20/45+5/7 4/45+25/7 4/45+5/35 28/45+5/7 4/45+35/7 4/45+5/49