Add 10/72 and 4/40
10/72 + 4/40 is 43/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
10/72 = 10 × 5/72 × 5 = 50/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
4/40 = 4 × 9/40 × 9 = 36/360 - Add the two like fractions:
50/360 + 36/360 = 50 + 36/360 = 86/360 - 86/360 simplified gives 43/180
- So, 10/72 + 4/40 = 43/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72+4/40 10/72+8/40 10/72+4/80 30/72+4/40 10/72+12/40 50/72+4/40 10/72+20/40 70/72+4/40 10/72+28/40