Add 16/18 and 63/70
16/18 + 63/70 is 161/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
16/18 = 16 × 35/18 × 35 = 560/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
63/70 = 63 × 9/70 × 9 = 567/630 - Add the two like fractions:
560/630 + 567/630 = 560 + 567/630 = 1127/630 - 1127/630 simplified gives 161/90
- So, 16/18 + 63/70 = 161/90
In mixed form: 171/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18+63/70 16/36+63/70 48/18+63/70 16/54+63/70 80/18+63/70 16/90+63/70