Add 7/30 and 18/28
7/30 + 18/28 is 92/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
7/30 = 7 × 14/30 × 14 = 98/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
18/28 = 18 × 15/28 × 15 = 270/420 - Add the two like fractions:
98/420 + 270/420 = 98 + 270/420 = 368/420 - 368/420 simplified gives 92/105
- So, 7/30 + 18/28 = 92/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+18/28 7/30+36/28 7/60+18/28 7/30+18/56 21/30+18/28 7/30+54/28 7/90+18/28 7/30+18/84 35/30+18/28 7/30+90/28 49/30+18/28