Add 98/8 and 18/30
1st number: 12 2/8, 2nd number: 18/30
98/8 + 18/30 is 257/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
98/8 = 98 × 15/8 × 15 = 1470/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
18/30 = 18 × 4/30 × 4 = 72/120 - Add the two like fractions:
1470/120 + 72/120 = 1470 + 72/120 = 1542/120 - 1542/120 simplified gives 257/20
- So, 98/8 + 18/30 = 257/20
In mixed form: 1217/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/8+36/30 98/16+18/30 98/8+18/60 98/8+54/30 98/24+18/30 98/8+18/90 98/8+90/30 98/40+18/30 98/56+18/30