Add 90/45 and 72/50
1st number: 2 0/45, 2nd number: 1 22/50
90/45 + 72/50 is 86/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
90/45 = 90 × 10/45 × 10 = 900/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
72/50 = 72 × 9/50 × 9 = 648/450 - Add the two like fractions:
900/450 + 648/450 = 900 + 648/450 = 1548/450 - 1548/450 simplified gives 86/25
- So, 90/45 + 72/50 = 86/25
In mixed form: 311/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: