Add 45/6 and 16/40, Solve 7 3/6 + 16/40 as a fraction

Add 45/6 and 16/40

1^st number: 7 3/6, 2^nd number: 16/40

45/6 + 16/40 is 79/10.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 6 × 20 = 120,
45/6 = 45 × 20/6 × 20 = 900/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
16/40 = 16 × 3/40 × 3 = 48/120
Add the two like fractions:
900/120 + 48/120 = 900 + 48/120 = 948/120
948/120 simplified gives 79/10
So, 45/6 + 16/40 = 79/10
In mixed form: 79/10

MathStep (Works offline)

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