Add 98/72 and 90/42
1st number: 1 26/72, 2nd number: 2 6/42
98/72 + 90/42 is 883/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
98/72 = 98 × 7/72 × 7 = 686/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
90/42 = 90 × 12/42 × 12 = 1080/504 - Add the two like fractions:
686/504 + 1080/504 = 686 + 1080/504 = 1766/504 - 1766/504 simplified gives 883/252
- So, 98/72 + 90/42 = 883/252
In mixed form: 3127/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/72+90/84