Add 45/30 and 5/72
1st number: 1 15/30, 2nd number: 5/72
45/30 + 5/72 is 113/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
45/30 = 45 × 12/30 × 12 = 540/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
5/72 = 5 × 5/72 × 5 = 25/360 - Add the two like fractions:
540/360 + 25/360 = 540 + 25/360 = 565/360 - 565/360 simplified gives 113/72
- So, 45/30 + 5/72 = 113/72
In mixed form: 141/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+5/72 45/30+10/72 45/60+5/72 45/30+15/72 45/90+5/72 45/30+25/72 45/30+35/72