Add 42/4 and 3/70, Solve 10 2/4 + 3/70 as a fraction

Add 42/4 and 3/70

1^st number: 10 2/4, 2^nd number: 3/70

42/4 + 3/70 is 369/35.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 4 × 35 = 140,
42/4 = 42 × 35/4 × 35 = 1470/140
Likewise, for the 2nd fraction, since 70 × 2 = 140,
3/70 = 3 × 2/70 × 2 = 6/140
Add the two like fractions:
1470/140 + 6/140 = 1470 + 6/140 = 1476/140
1476/140 simplified gives 369/35
So, 42/4 + 3/70 = 369/35
In mixed form: 1019/35

MathStep (Works offline)

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