Add 96/28 and 9/40, Solve 3 12/28 + 9/40 as a fraction

Add 96/28 and 9/40

1^st number: 3 12/28, 2^nd number: 9/40

96/28 + 9/40 is 1023/280.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 28 × 10 = 280,
96/28 = 96 × 10/28 × 10 = 960/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280
Add the two like fractions:
960/280 + 63/280 = 960 + 63/280 = 1023/280
So, 96/28 + 9/40 = 1023/280
In mixed form: 3183/280

MathStep (Works offline)

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