Add 70/20 and 90/4
1st number: 3 10/20, 2nd number: 22 2/4
70/20 + 90/4 is 26/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
70/20 = 70 × 1/20 × 1 = 70/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
90/4 = 90 × 5/4 × 5 = 450/20 - Add the two like fractions:
70/20 + 450/20 = 70 + 450/20 = 520/20 - 520/20 simplified gives 26/1
- So, 70/20 + 90/4 = 26/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+90/4 70/20+90/8 70/60+90/4 70/20+90/12 70/20+90/20 70/20+90/28