Add 90/40 and 84/60
1st number: 2 10/40, 2nd number: 1 24/60
90/40 + 84/60 is 73/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
90/40 = 90 × 3/40 × 3 = 270/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
84/60 = 84 × 2/60 × 2 = 168/120 - Add the two like fractions:
270/120 + 168/120 = 270 + 168/120 = 438/120 - 438/120 simplified gives 73/20
- So, 90/40 + 84/60 = 73/20
In mixed form: 313/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+84/60