Add 18/70 and 81/16
1st number: 18/70, 2nd number: 5 1/16
18/70 + 81/16 is 2979/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
18/70 = 18 × 8/70 × 8 = 144/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
81/16 = 81 × 35/16 × 35 = 2835/560 - Add the two like fractions:
144/560 + 2835/560 = 144 + 2835/560 = 2979/560 - So, 18/70 + 81/16 = 2979/560
In mixed form: 5179/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+81/16 18/70+81/32 54/70+81/16 18/70+81/48 90/70+81/16 18/70+81/80