Add 90/14 and 40/60
1st number: 6 6/14, 2nd number: 40/60
90/14 + 40/60 is 149/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 14 × 30 = 420,
90/14 = 90 × 30/14 × 30 = 2700/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
40/60 = 40 × 7/60 × 7 = 280/420 - Add the two like fractions:
2700/420 + 280/420 = 2700 + 280/420 = 2980/420 - 2980/420 simplified gives 149/21
- So, 90/14 + 40/60 = 149/21
In mixed form: 72/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+80/60 90/28+40/60 90/42+40/60 90/70+40/60 90/98+40/60