Add 54/4 and 90/84
1st number: 13 2/4, 2nd number: 1 6/84
54/4 + 90/84 is 102/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
54/4 = 54 × 21/4 × 21 = 1134/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
90/84 = 90 × 1/84 × 1 = 90/84 - Add the two like fractions:
1134/84 + 90/84 = 1134 + 90/84 = 1224/84 - 1224/84 simplified gives 102/7
- So, 54/4 + 90/84 = 102/7
In mixed form: 144/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+90/84 54/12+90/84 54/20+90/84 54/28+90/84