Add 45/4 and 12/45
1st number: 11 1/4, 2nd number: 12/45
45/4 + 12/45 is 691/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
45/4 = 45 × 45/4 × 45 = 2025/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
12/45 = 12 × 4/45 × 4 = 48/180 - Add the two like fractions:
2025/180 + 48/180 = 2025 + 48/180 = 2073/180 - 2073/180 simplified gives 691/60
- So, 45/4 + 12/45 = 691/60
In mixed form: 1131/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+12/45 45/4+24/45 45/8+12/45 45/4+12/90 45/4+36/45 45/12+12/45 45/4+60/45 45/20+12/45 45/4+84/45 45/28+12/45