Add 42/35 and 9/24, Solve 1 7/35 + 9/24 as a fraction

Add 42/35 and 9/24

1^st number: 1 7/35, 2^nd number: 9/24

42/35 + 9/24 is 63/40.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 24 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 35 × 24 = 840,
42/35 = 42 × 24/35 × 24 = 1008/840
Likewise, for the 2nd fraction, since 24 × 35 = 840,
9/24 = 9 × 35/24 × 35 = 315/840
Add the two like fractions:
1008/840 + 315/840 = 1008 + 315/840 = 1323/840
1323/840 simplified gives 63/40
So, 42/35 + 9/24 = 63/40
In mixed form: 123/40

MathStep (Works offline)

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