Add 98/20 and 40/70
1st number: 4 18/20, 2nd number: 40/70
98/20 + 40/70 is 383/70.
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,
40/70 = 40 × 2/70 × 2 = 80/140 - Add the two like fractions:
686/140 + 80/140 = 686 + 80/140 = 766/140 - 766/140 simplified gives 383/70
- So, 98/20 + 40/70 = 383/70
In mixed form: 533/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20+80/70 98/40+40/70 98/60+40/70