Add 4/80 and 75/90
4/80 + 75/90 is 53/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
4/80 = 4 × 9/80 × 9 = 36/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
75/90 = 75 × 8/90 × 8 = 600/720 - Add the two like fractions:
36/720 + 600/720 = 36 + 600/720 = 636/720 - 636/720 simplified gives 53/60
- So, 4/80 + 75/90 = 53/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/80+75/90 12/80+75/90 20/80+75/90 28/80+75/90