Add 81/70 and 18/32
1st number: 1 11/70, 2nd number: 18/32
81/70 + 18/32 is 963/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 32 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 70 × 16 = 1120,
81/70 = 81 × 16/70 × 16 = 1296/1120 - Likewise, for the 2nd fraction, since 32 × 35 = 1120,
18/32 = 18 × 35/32 × 35 = 630/1120 - Add the two like fractions:
1296/1120 + 630/1120 = 1296 + 630/1120 = 1926/1120 - 1926/1120 simplified gives 963/560
- So, 81/70 + 18/32 = 963/560
In mixed form: 1403/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/70+36/32 81/70+18/64 81/70+54/32 81/70+18/96 81/70+90/32