Add 90/12 and 40/10
1st number: 7 6/12, 2nd number: 4 0/10
90/12 + 40/10 is 23/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
40/10 = 40 × 6/10 × 6 = 240/60 - Add the two like fractions:
450/60 + 240/60 = 450 + 240/60 = 690/60 - 690/60 simplified gives 23/2
- So, 90/12 + 40/10 = 23/2
In mixed form: 111/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+80/10 90/24+40/10 90/12+40/20 90/36+40/10 90/12+40/30 90/60+40/10 90/12+40/50 90/84+40/10 90/12+40/70