Add 54/15 and 75/98
1st number: 3 9/15, 2nd number: 75/98
54/15 + 75/98 is 2139/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 15 × 98 = 1470,
54/15 = 54 × 98/15 × 98 = 5292/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
75/98 = 75 × 15/98 × 15 = 1125/1470 - Add the two like fractions:
5292/1470 + 1125/1470 = 5292 + 1125/1470 = 6417/1470 - 6417/1470 simplified gives 2139/490
- So, 54/15 + 75/98 = 2139/490
In mixed form: 4179/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+75/98 54/45+75/98 54/75+75/98