Add 98/56 and 18/70
1st number: 1 42/56, 2nd number: 18/70
98/56 + 18/70 is 281/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
98/56 = 98 × 5/56 × 5 = 490/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
18/70 = 18 × 4/70 × 4 = 72/280 - Add the two like fractions:
490/280 + 72/280 = 490 + 72/280 = 562/280 - 562/280 simplified gives 281/140
- So, 98/56 + 18/70 = 281/140
In mixed form: 21/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/56+36/70 98/56+54/70 98/56+90/70