Add 72/8 and 12/30
1st number: 9 0/8, 2nd number: 12/30
72/8 + 12/30 is 47/5.
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,
72/8 = 72 × 15/8 × 15 = 1080/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
12/30 = 12 × 4/30 × 4 = 48/120 - Add the two like fractions:
1080/120 + 48/120 = 1080 + 48/120 = 1128/120 - 1128/120 simplified gives 47/5
- So, 72/8 + 12/30 = 47/5
In mixed form: 92/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8+24/30 72/16+12/30 72/8+12/60 72/8+36/30 72/24+12/30 72/8+12/90 72/8+60/30 72/40+12/30 72/8+84/30 72/56+12/30