Add 3/45 and 4/72
3/45 + 4/72 is 11/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
3/45 = 3 × 8/45 × 8 = 24/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Add the two like fractions:
24/360 + 20/360 = 24 + 20/360 = 44/360 - 44/360 simplified gives 11/90
- So, 3/45 + 4/72 = 11/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45+4/72 3/45+8/72 3/90+4/72 9/45+4/72 3/45+12/72 15/45+4/72 3/45+20/72 21/45+4/72 3/45+28/72