Add 90/84 and 4/60
1st number: 1 6/84, 2nd number: 4/60
90/84 + 4/60 is 239/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
4/60 = 4 × 7/60 × 7 = 28/420 - Add the two like fractions:
450/420 + 28/420 = 450 + 28/420 = 478/420 - 478/420 simplified gives 239/210
- So, 90/84 + 4/60 = 239/210
In mixed form: 129/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+8/60 90/84+12/60 90/84+20/60 90/84+28/60