Add 90/4 and 4/80
1st number: 22 2/4, 2nd number: 4/80
90/4 + 4/80 is 451/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
90/4 = 90 × 20/4 × 20 = 1800/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
4/80 = 4 × 1/80 × 1 = 4/80 - Add the two like fractions:
1800/80 + 4/80 = 1800 + 4/80 = 1804/80 - 1804/80 simplified gives 451/20
- So, 90/4 + 4/80 = 451/20
In mixed form: 2211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+8/80 90/8+4/80 90/4+12/80 90/12+4/80 90/4+20/80 90/20+4/80 90/4+28/80 90/28+4/80