Add 50/72 and 70/98
50/72 + 70/98 is 355/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 98 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
50/72 = 50 × 49/72 × 49 = 2450/3528 - Likewise, for the 2nd fraction, since 98 × 36 = 3528,
70/98 = 70 × 36/98 × 36 = 2520/3528 - Add the two like fractions:
2450/3528 + 2520/3528 = 2450 + 2520/3528 = 4970/3528 - 4970/3528 simplified gives 355/252
- So, 50/72 + 70/98 = 355/252
In mixed form: 1103/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: