Add 30/10 and 45/72
1st number: 3 0/10, 2nd number: 45/72
30/10 + 45/72 is 29/8.
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,
30/10 = 30 × 36/10 × 36 = 1080/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Add the two like fractions:
1080/360 + 225/360 = 1080 + 225/360 = 1305/360 - 1305/360 simplified gives 29/8
- So, 30/10 + 45/72 = 29/8
In mixed form: 35/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+45/72 30/10+90/72 30/20+45/72 90/10+45/72 30/50+45/72 30/70+45/72