Add 42/6 and 35/40, Solve 7 0/6 + 35/40 as a fraction

Add 42/6 and 35/40

1^st number: 7 0/6, 2^nd number: 35/40

42/6 + 35/40 is 63/8.

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,
42/6 = 42 × 20/6 × 20 = 840/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
35/40 = 35 × 3/40 × 3 = 105/120
Add the two like fractions:
840/120 + 105/120 = 840 + 105/120 = 945/120
945/120 simplified gives 63/8
So, 42/6 + 35/40 = 63/8
In mixed form: 77/8

MathStep (Works offline)

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