Add 21/18 and 5/25
1st number: 1 3/18, 2nd number: 5/25
21/18 + 5/25 is 41/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
21/18 = 21 × 25/18 × 25 = 525/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
5/25 = 5 × 18/25 × 18 = 90/450 - Add the two like fractions:
525/450 + 90/450 = 525 + 90/450 = 615/450 - 615/450 simplified gives 41/30
- So, 21/18 + 5/25 = 41/30
In mixed form: 111/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18+5/25 21/18+10/25 21/36+5/25 21/18+5/50 63/18+5/25 21/18+15/25 21/54+5/25 21/18+5/75 21/90+5/25 21/18+35/25