Add 90/10 and 45/72
1st number: 9 0/10, 2nd number: 45/72
90/10 + 45/72 is 77/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
90/10 = 90 × 36/10 × 36 = 3240/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Add the two like fractions:
3240/360 + 225/360 = 3240 + 225/360 = 3465/360 - 3465/360 simplified gives 77/8
- So, 90/10 + 45/72 = 77/8
In mixed form: 95/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+90/72 90/20+45/72 90/30+45/72 90/50+45/72 90/70+45/72