Add 90/72 and 16/30
1st number: 1 18/72, 2nd number: 16/30
90/72 + 16/30 is 107/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
16/30 = 16 × 12/30 × 12 = 192/360 - Add the two like fractions:
450/360 + 192/360 = 450 + 192/360 = 642/360 - 642/360 simplified gives 107/60
- So, 90/72 + 16/30 = 107/60
In mixed form: 147/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+32/30 90/72+16/60 90/72+48/30 90/72+16/90 90/72+80/30