Add 90/16 and 42/80
1st number: 5 10/16, 2nd number: 42/80
90/16 + 42/80 is 123/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
90/16 = 90 × 5/16 × 5 = 450/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
450/80 + 42/80 = 450 + 42/80 = 492/80 - 492/80 simplified gives 123/20
- So, 90/16 + 42/80 = 123/20
In mixed form: 63/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+84/80 90/32+42/80 90/48+42/80 90/80+42/80