Add 21/14 and 70/16
1st number: 1 7/14, 2nd number: 4 6/16
21/14 + 70/16 is 47/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 14 × 8 = 112,
21/14 = 21 × 8/14 × 8 = 168/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
70/16 = 70 × 7/16 × 7 = 490/112 - Add the two like fractions:
168/112 + 490/112 = 168 + 490/112 = 658/112 - 658/112 simplified gives 47/8
- So, 21/14 + 70/16 = 47/8
In mixed form: 57/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+70/16 21/28+70/16 21/14+70/32 63/14+70/16 21/42+70/16 21/14+70/48 21/70+70/16 21/14+70/80 21/98+70/16