Add 4/16 and 9/90
4/16 + 9/90 is 7/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
4/16 = 4 × 45/16 × 45 = 180/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
9/90 = 9 × 8/90 × 8 = 72/720 - Add the two like fractions:
180/720 + 72/720 = 180 + 72/720 = 252/720 - 252/720 simplified gives 7/20
- So, 4/16 + 9/90 = 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16+9/90 4/16+18/90 4/32+9/90 12/16+9/90 4/16+27/90 4/48+9/90 20/16+9/90 4/16+45/90 4/80+9/90 28/16+9/90 4/16+63/90