Add 90/2 and 80/60
1st number: 45 0/2, 2nd number: 1 20/60
90/2 + 80/60 is 139/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 2 × 30 = 60,
90/2 = 90 × 30/2 × 30 = 2700/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
80/60 = 80 × 1/60 × 1 = 80/60 - Add the two like fractions:
2700/60 + 80/60 = 2700 + 80/60 = 2780/60 - 2780/60 simplified gives 139/3
- So, 90/2 + 80/60 = 139/3
In mixed form: 461/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+80/60 90/6+80/60 90/10+80/60 90/14+80/60