Add 42/40 and 90/16
1st number: 1 2/40, 2nd number: 5 10/16
42/40 + 90/16 is 267/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
42/40 = 42 × 2/40 × 2 = 84/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
90/16 = 90 × 5/16 × 5 = 450/80 - Add the two like fractions:
84/80 + 450/80 = 84 + 450/80 = 534/80 - 534/80 simplified gives 267/40
- So, 42/40 + 90/16 = 267/40
In mixed form: 627/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+90/16 42/80+90/16 42/40+90/32 42/40+90/48 42/40+90/80