Add 90/72 and 70/32
1st number: 1 18/72, 2nd number: 2 6/32
90/72 + 70/32 is 55/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 72 × 4 = 288,
90/72 = 90 × 4/72 × 4 = 360/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
70/32 = 70 × 9/32 × 9 = 630/288 - Add the two like fractions:
360/288 + 630/288 = 360 + 630/288 = 990/288 - 990/288 simplified gives 55/16
- So, 90/72 + 70/32 = 55/16
In mixed form: 37/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+70/64 90/72+70/96