Add 70/50 and 4/90
1st number: 1 20/50, 2nd number: 4/90
70/50 + 4/90 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
70/50 = 70 × 9/50 × 9 = 630/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
4/90 = 4 × 5/90 × 5 = 20/450 - Add the two like fractions:
630/450 + 20/450 = 630 + 20/450 = 650/450 - 650/450 simplified gives 13/9
- So, 70/50 + 4/90 = 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: 70/50+8/90 70/50+12/90 70/50+20/90 70/50+28/90