Add 10/5 and 90/45
1st number: 2 0/5, 2nd number: 2 0/45
10/5 + 90/45 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
10/5 = 10 × 9/5 × 9 = 90/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
90/45 = 90 × 1/45 × 1 = 90/45 - Add the two like fractions:
90/45 + 90/45 = 90 + 90/45 = 180/45 - 180/45 simplified gives 4/1
- So, 10/5 + 90/45 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5+90/45 30/5+90/45 10/15+90/45 50/5+90/45 10/25+90/45 70/5+90/45 10/35+90/45