Add 75/10 and 90/72
1st number: 7 5/10, 2nd number: 1 18/72
75/10 + 90/72 is 35/4.
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,
75/10 = 75 × 36/10 × 36 = 2700/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
2700/360 + 450/360 = 2700 + 450/360 = 3150/360 - 3150/360 simplified gives 35/4
- So, 75/10 + 90/72 = 35/4
In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20+90/72 75/30+90/72 75/50+90/72 75/70+90/72