Add 98/20 and 98/70
1st number: 4 18/20, 2nd number: 1 28/70
98/20 + 98/70 is 63/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
98/20 = 98 × 7/20 × 7 = 686/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
98/70 = 98 × 2/70 × 2 = 196/140 - Add the two like fractions:
686/140 + 196/140 = 686 + 196/140 = 882/140 - 882/140 simplified gives 63/10
- So, 98/20 + 98/70 = 63/10
In mixed form: 63/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40+98/70 98/60+98/70