Add 12/21 and 96/45
1st number: 12/21, 2nd number: 2 6/45
12/21 + 96/45 is 284/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
12/21 = 12 × 15/21 × 15 = 180/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
96/45 = 96 × 7/45 × 7 = 672/315 - Add the two like fractions:
180/315 + 672/315 = 180 + 672/315 = 852/315 - 852/315 simplified gives 284/105
- So, 12/21 + 96/45 = 284/105
In mixed form: 274/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+96/45 12/42+96/45 12/21+96/90 36/21+96/45 12/63+96/45 60/21+96/45 84/21+96/45