Add 16/35 and 70/90
16/35 + 70/90 is 389/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
16/35 = 16 × 18/35 × 18 = 288/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630 - Add the two like fractions:
288/630 + 490/630 = 288 + 490/630 = 778/630 - 778/630 simplified gives 389/315
- So, 16/35 + 70/90 = 389/315
In mixed form: 174/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/35+70/90 16/70+70/90 48/35+70/90 80/35+70/90