Add 75/12 and 90/80
1st number: 6 3/12, 2nd number: 1 10/80
75/12 + 90/80 is 59/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
75/12 = 75 × 20/12 × 20 = 1500/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
90/80 = 90 × 3/80 × 3 = 270/240 - Add the two like fractions:
1500/240 + 270/240 = 1500 + 270/240 = 1770/240 - 1770/240 simplified gives 59/8
- So, 75/12 + 90/80 = 59/8
In mixed form: 73/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/24+90/80 75/36+90/80 75/60+90/80 75/84+90/80