Add 75/80 and 90/36
1st number: 75/80, 2nd number: 2 18/36
75/80 + 90/36 is 55/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 36 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
75/80 = 75 × 9/80 × 9 = 675/720 - Likewise, for the 2nd fraction, since 36 × 20 = 720,
90/36 = 90 × 20/36 × 20 = 1800/720 - Add the two like fractions:
675/720 + 1800/720 = 675 + 1800/720 = 2475/720 - 2475/720 simplified gives 55/16
- So, 75/80 + 90/36 = 55/16
In mixed form: 37/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+90/72