Add 42/28 and 8/30
1st number: 1 14/28, 2nd number: 8/30
42/28 + 8/30 is 53/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
42/28 = 42 × 15/28 × 15 = 630/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
8/30 = 8 × 14/30 × 14 = 112/420 - Add the two like fractions:
630/420 + 112/420 = 630 + 112/420 = 742/420 - 742/420 simplified gives 53/30
- So, 42/28 + 8/30 = 53/30
In mixed form: 123/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+8/30 42/28+16/30 42/56+8/30 42/28+8/60 42/28+24/30 42/84+8/30 42/28+8/90 42/28+40/30 42/28+56/30