Add 21/96 and 72/30
1st number: 21/96, 2nd number: 2 12/30
21/96 + 72/30 is 419/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 30 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
21/96 = 21 × 5/96 × 5 = 105/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
72/30 = 72 × 16/30 × 16 = 1152/480 - Add the two like fractions:
105/480 + 1152/480 = 105 + 1152/480 = 1257/480 - 1257/480 simplified gives 419/160
- So, 21/96 + 72/30 = 419/160
In mixed form: 299/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/96+72/30 21/96+72/60 63/96+72/30 21/96+72/90