Add 3/24 and 72/70, Solve 3/24 + 1 2/70 as a fraction

Add 3/24 and 72/70

1^st number: 3/24, 2^nd number: 1 2/70

3/24 + 72/70 is 323/280.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 24 × 35 = 840,
3/24 = 3 × 35/24 × 35 = 105/840
Likewise, for the 2nd fraction, since 70 × 12 = 840,
72/70 = 72 × 12/70 × 12 = 864/840
Add the two like fractions:
105/840 + 864/840 = 105 + 864/840 = 969/840
969/840 simplified gives 323/280
So, 3/24 + 72/70 = 323/280
In mixed form: 143/280

MathStep (Works offline)

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