Add 90/84 and 54/25
1st number: 1 6/84, 2nd number: 2 4/25
90/84 + 54/25 is 1131/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 25 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
90/84 = 90 × 25/84 × 25 = 2250/2100 - Likewise, for the 2nd fraction, since 25 × 84 = 2100,
54/25 = 54 × 84/25 × 84 = 4536/2100 - Add the two like fractions:
2250/2100 + 4536/2100 = 2250 + 4536/2100 = 6786/2100 - 6786/2100 simplified gives 1131/350
- So, 90/84 + 54/25 = 1131/350
In mixed form: 381/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+54/50 90/84+54/75