Add 4/90 and 63/45
1st number: 4/90, 2nd number: 1 18/45
4/90 + 63/45 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
63/45 = 63 × 2/45 × 2 = 126/90 - Add the two like fractions:
4/90 + 126/90 = 4 + 126/90 = 130/90 - 130/90 simplified gives 13/9
- So, 4/90 + 63/45 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90+63/45 4/90+63/90 12/90+63/45 20/90+63/45 28/90+63/45