Add 30/60 and 7/4, Solve 30/60 + 1 3/4 as a fraction

Add 30/60 and 7/4

1^st number: 30/60, 2^nd number: 1 3/4

30/60 + 7/4 is 9/4.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 4 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60
Likewise, for the 2nd fraction, since 4 × 15 = 60,
7/4 = 7 × 15/4 × 15 = 105/60
Add the two like fractions:
30/60 + 105/60 = 30 + 105/60 = 135/60
135/60 simplified gives 9/4
So, 30/60 + 7/4 = 9/4
In mixed form: 21/4

MathStep (Works offline)

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