Add 98/40 and 12/7
1st number: 2 18/40, 2nd number: 1 5/7
98/40 + 12/7 is 583/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
98/40 = 98 × 7/40 × 7 = 686/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
12/7 = 12 × 40/7 × 40 = 480/280 - Add the two like fractions:
686/280 + 480/280 = 686 + 480/280 = 1166/280 - 1166/280 simplified gives 583/140
- So, 98/40 + 12/7 = 583/140
In mixed form: 423/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40+24/7 98/80+12/7 98/40+12/14 98/40+36/7 98/40+12/21 98/40+60/7 98/40+12/35 98/40+84/7 98/40+12/49