Add 50/12 and 7/40, Solve 4 2/12 + 7/40 as a fraction

Add 50/12 and 7/40

1^st number: 4 2/12, 2^nd number: 7/40

50/12 + 7/40 is 521/120.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
50/12 = 50 × 10/12 × 10 = 500/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120
Add the two like fractions:
500/120 + 21/120 = 500 + 21/120 = 521/120
So, 50/12 + 7/40 = 521/120
In mixed form: 441/120

MathStep (Works offline)

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