Add 75/80 and 90/60
1st number: 75/80, 2nd number: 1 30/60
75/80 + 90/60 is 39/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
75/80 = 75 × 3/80 × 3 = 225/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
90/60 = 90 × 4/60 × 4 = 360/240 - Add the two like fractions:
225/240 + 360/240 = 225 + 360/240 = 585/240 - 585/240 simplified gives 39/16
- So, 75/80 + 90/60 = 39/16
In mixed form: 27/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: