Add 75/42 and 5/45, Solve 1 33/42 + 5/45 as a fraction

Add 75/42 and 5/45

1^st number: 1 33/42, 2^nd number: 5/45

75/42 + 5/45 is 239/126.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
5/45 = 5 × 14/45 × 14 = 70/630
Add the two like fractions:
1125/630 + 70/630 = 1125 + 70/630 = 1195/630
1195/630 simplified gives 239/126
So, 75/42 + 5/45 = 239/126
In mixed form: 1113/126

MathStep (Works offline)

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