Add 90/24 and 70/45
1st number: 3 18/24, 2nd number: 1 25/45
90/24 + 70/45 is 191/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
90/24 = 90 × 15/24 × 15 = 1350/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Add the two like fractions:
1350/360 + 560/360 = 1350 + 560/360 = 1910/360 - 1910/360 simplified gives 191/36
- So, 90/24 + 70/45 = 191/36
In mixed form: 511/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+70/45 90/24+70/90 90/72+70/45