Add 72/40 and 98/12
1st number: 1 32/40, 2nd number: 8 2/12
72/40 + 98/12 is 299/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
98/12 = 98 × 10/12 × 10 = 980/120 - Add the two like fractions:
216/120 + 980/120 = 216 + 980/120 = 1196/120 - 1196/120 simplified gives 299/30
- So, 72/40 + 98/12 = 299/30
In mixed form: 929/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+98/12 72/40+98/24 72/40+98/36 72/40+98/60 72/40+98/84