Add 72/20 and 98/4
1st number: 3 12/20, 2nd number: 24 2/4
72/20 + 98/4 is 281/10.
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,
72/20 = 72 × 1/20 × 1 = 72/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
98/4 = 98 × 5/4 × 5 = 490/20 - Add the two like fractions:
72/20 + 490/20 = 72 + 490/20 = 562/20 - 562/20 simplified gives 281/10
- So, 72/20 + 98/4 = 281/10
In mixed form: 281/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+98/4 72/20+98/8 72/60+98/4 72/20+98/12 72/20+98/20 72/20+98/28