Add 35/80 and 4/72
35/80 + 4/72 is 71/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
35/80 = 35 × 9/80 × 9 = 315/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
4/72 = 4 × 10/72 × 10 = 40/720 - Add the two like fractions:
315/720 + 40/720 = 315 + 40/720 = 355/720 - 355/720 simplified gives 71/144
- So, 35/80 + 4/72 = 71/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80+4/72 35/80+8/72 35/80+12/72 35/80+20/72 35/80+28/72