Add 21/16 and 7/70
1st number: 1 5/16, 2nd number: 7/70
21/16 + 7/70 is 113/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
21/16 = 21 × 35/16 × 35 = 735/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
7/70 = 7 × 8/70 × 8 = 56/560 - Add the two like fractions:
735/560 + 56/560 = 735 + 56/560 = 791/560 - 791/560 simplified gives 113/80
- So, 21/16 + 7/70 = 113/80
In mixed form: 133/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16+7/70 21/16+14/70 21/32+7/70 63/16+7/70 21/16+21/70 21/48+7/70 21/16+35/70 21/80+7/70 21/16+49/70