Add 96/21 and 98/40
1st number: 4 12/21, 2nd number: 2 18/40
96/21 + 98/40 is 983/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 21 × 40 = 840,
96/21 = 96 × 40/21 × 40 = 3840/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
98/40 = 98 × 21/40 × 21 = 2058/840 - Add the two like fractions:
3840/840 + 2058/840 = 3840 + 2058/840 = 5898/840 - 5898/840 simplified gives 983/140
- So, 96/21 + 98/40 = 983/140
In mixed form: 73/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42+98/40 96/21+98/80 96/63+98/40