Add 7/72 and 27/40
7/72 + 27/40 is 139/180.
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,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
27/40 = 27 × 9/40 × 9 = 243/360 - Add the two like fractions:
35/360 + 243/360 = 35 + 243/360 = 278/360 - 278/360 simplified gives 139/180
- So, 7/72 + 27/40 = 139/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/72+27/40 7/72+54/40 7/72+27/80 21/72+27/40 7/72+81/40 35/72+27/40 49/72+27/40