Add 81/7 and 18/32, Solve 11 4/7 + 18/32 as a fraction

Add 81/7 and 18/32

1^st number: 11 4/7, 2^nd number: 18/32

81/7 + 18/32 is 1359/112.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224

Next, find the equivalent fraction of both fractional numbers with denominator 224
For the 1st fraction, since 7 × 32 = 224,
81/7 = 81 × 32/7 × 32 = 2592/224
Likewise, for the 2nd fraction, since 32 × 7 = 224,
18/32 = 18 × 7/32 × 7 = 126/224
Add the two like fractions:
2592/224 + 126/224 = 2592 + 126/224 = 2718/224
2718/224 simplified gives 1359/112
So, 81/7 + 18/32 = 1359/112
In mixed form: 1215/112

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad