Add 25/8 and 12/45
1st number: 3 1/8, 2nd number: 12/45
25/8 + 12/45 is 407/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
25/8 = 25 × 45/8 × 45 = 1125/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
12/45 = 12 × 8/45 × 8 = 96/360 - Add the two like fractions:
1125/360 + 96/360 = 1125 + 96/360 = 1221/360 - 1221/360 simplified gives 407/120
- So, 25/8 + 12/45 = 407/120
In mixed form: 347/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8+12/45 25/8+24/45 25/16+12/45 25/8+12/90 75/8+12/45 25/8+36/45 25/24+12/45 25/8+60/45 25/40+12/45 25/8+84/45 25/56+12/45