Add 90/54 and 16/7
1st number: 1 36/54, 2nd number: 2 2/7
90/54 + 16/7 is 83/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
16/7 = 16 × 54/7 × 54 = 864/378 - Add the two like fractions:
630/378 + 864/378 = 630 + 864/378 = 1494/378 - 1494/378 simplified gives 83/21
- So, 90/54 + 16/7 = 83/21
In mixed form: 320/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+32/7 90/54+16/14 90/54+48/7 90/54+16/21 90/54+80/7 90/54+16/35 90/54+16/49