Add 28/70 and 35/24, Solve 28/70 + 1 11/24 as a fraction

Add 28/70 and 35/24

1^st number: 28/70, 2^nd number: 1 11/24

28/70 + 35/24 is 223/120.

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

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 70 × 12 = 840,
28/70 = 28 × 12/70 × 12 = 336/840
Likewise, for the 2nd fraction, since 24 × 35 = 840,
35/24 = 35 × 35/24 × 35 = 1225/840
Add the two like fractions:
336/840 + 1225/840 = 336 + 1225/840 = 1561/840
1561/840 simplified gives 223/120
So, 28/70 + 35/24 = 223/120
In mixed form: 1103/120

MathStep (Works offline)

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