Add 72/4 and 8/90
1st number: 18 0/4, 2nd number: 8/90
72/4 + 8/90 is 814/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
72/4 = 72 × 45/4 × 45 = 3240/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
8/90 = 8 × 2/90 × 2 = 16/180 - Add the two like fractions:
3240/180 + 16/180 = 3240 + 16/180 = 3256/180 - 3256/180 simplified gives 814/45
- So, 72/4 + 8/90 = 814/45
In mixed form: 184/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4+16/90 72/8+8/90 72/4+24/90 72/12+8/90 72/4+40/90 72/20+8/90 72/4+56/90 72/28+8/90