Add 4/60 and 4/90
4/60 + 4/90 is 1/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
4/60 = 4 × 3/60 × 3 = 12/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
4/90 = 4 × 2/90 × 2 = 8/180 - Add the two like fractions:
12/180 + 8/180 = 12 + 8/180 = 20/180 - 20/180 simplified gives 1/9
- So, 4/60 + 4/90 = 1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/60+4/90 4/60+8/90 12/60+4/90 4/60+12/90 20/60+4/90 4/60+20/90 28/60+4/90 4/60+28/90