Add 84/14 and 60/40
1st number: 6 0/14, 2nd number: 1 20/40
84/14 + 60/40 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
84/14 = 84 × 20/14 × 20 = 1680/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
60/40 = 60 × 7/40 × 7 = 420/280 - Add the two like fractions:
1680/280 + 420/280 = 1680 + 420/280 = 2100/280 - 2100/280 simplified gives 15/2
- So, 84/14 + 60/40 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+60/40 84/14+60/80 84/42+60/40 84/70+60/40 84/98+60/40