Add 42/98 and 3/72
42/98 + 3/72 is 79/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
42/98 = 42 × 36/98 × 36 = 1512/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
3/72 = 3 × 49/72 × 49 = 147/3528 - Add the two like fractions:
1512/3528 + 147/3528 = 1512 + 147/3528 = 1659/3528 - 1659/3528 simplified gives 79/168
- So, 42/98 + 3/72 = 79/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+3/72 42/98+6/72 42/98+9/72 42/98+15/72 42/98+21/72