Add 16/90 and 54/70
16/90 + 54/70 is 299/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
16/90 = 16 × 7/90 × 7 = 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, 16/90 + 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: 32/90+54/70 48/90+54/70 80/90+54/70