Add 75/40 and 12/90
1st number: 1 35/40, 2nd number: 12/90
75/40 + 12/90 is 241/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
75/40 = 75 × 9/40 × 9 = 675/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
12/90 = 12 × 4/90 × 4 = 48/360 - Add the two like fractions:
675/360 + 48/360 = 675 + 48/360 = 723/360 - 723/360 simplified gives 241/120
- So, 75/40 + 12/90 = 241/120
In mixed form: 21/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/40+24/90 75/80+12/90 75/40+36/90 75/40+60/90 75/40+84/90