Add 70/28 and 75/30
1st number: 2 14/28, 2nd number: 2 15/30
70/28 + 75/30 is 5/1.
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,
70/28 = 70 × 15/28 × 15 = 1050/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
75/30 = 75 × 14/30 × 14 = 1050/420 - Add the two like fractions:
1050/420 + 1050/420 = 1050 + 1050/420 = 2100/420 - 2100/420 simplified gives 5/1
- So, 70/28 + 75/30 = 5/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56+75/30 70/28+75/60 70/84+75/30 70/28+75/90