Add 8/45 and 54/70
8/45 + 54/70 is 299/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
8/45 = 8 × 14/45 × 14 = 112/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
54/70 = 54 × 9/70 × 9 = 486/630 - Add the two like fractions:
112/630 + 486/630 = 112 + 486/630 = 598/630 - 598/630 simplified gives 299/315
- So, 8/45 + 54/70 = 299/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45+54/70 8/90+54/70 24/45+54/70 40/45+54/70 56/45+54/70