Add 12/60 and 90/9
1st number: 12/60, 2nd number: 10 0/9
12/60 + 90/9 is 51/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
12/60 = 12 × 3/60 × 3 = 36/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
90/9 = 90 × 20/9 × 20 = 1800/180 - Add the two like fractions:
36/180 + 1800/180 = 36 + 1800/180 = 1836/180 - 1836/180 simplified gives 51/5
- So, 12/60 + 90/9 = 51/5
In mixed form: 101/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/60+90/9 12/60+90/18 36/60+90/9 12/60+90/27 12/60+90/45 84/60+90/9 12/60+90/63