Add 90/7 and 8/45
1st number: 12 6/7, 2nd number: 8/45
90/7 + 8/45 is 4106/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
90/7 = 90 × 45/7 × 45 = 4050/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
8/45 = 8 × 7/45 × 7 = 56/315 - Add the two like fractions:
4050/315 + 56/315 = 4050 + 56/315 = 4106/315 - So, 90/7 + 8/45 = 4106/315
In mixed form: 1311/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+16/45 90/14+8/45 90/7+8/90 90/7+24/45 90/21+8/45 90/7+40/45 90/35+8/45 90/7+56/45 90/49+8/45