Add 72/98 and 54/40
1st number: 72/98, 2nd number: 1 14/40
72/98 + 54/40 is 2043/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
72/98 = 72 × 20/98 × 20 = 1440/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
54/40 = 54 × 49/40 × 49 = 2646/1960 - Add the two like fractions:
1440/1960 + 2646/1960 = 1440 + 2646/1960 = 4086/1960 - 4086/1960 simplified gives 2043/980
- So, 72/98 + 54/40 = 2043/980
In mixed form: 283/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/98+54/80