Add 90/16 and 21/54
1st number: 5 10/16, 2nd number: 21/54
90/16 + 21/54 is 433/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 54 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 16 × 27 = 432,
90/16 = 90 × 27/16 × 27 = 2430/432 - Likewise, for the 2nd fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432 - Add the two like fractions:
2430/432 + 168/432 = 2430 + 168/432 = 2598/432 - 2598/432 simplified gives 433/72
- So, 90/16 + 21/54 = 433/72
In mixed form: 61/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+42/54 90/32+21/54 90/16+63/54 90/48+21/54 90/80+21/54