Add 84/14 and 90/60
1st number: 6 0/14, 2nd number: 1 30/60
84/14 + 90/60 is 15/2.
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,
84/14 = 84 × 30/14 × 30 = 2520/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Add the two like fractions:
2520/420 + 630/420 = 2520 + 630/420 = 3150/420 - 3150/420 simplified gives 15/2
- So, 84/14 + 90/60 = 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+90/60 84/42+90/60 84/70+90/60 84/98+90/60