Add 7/28 and 9/30
7/28 + 9/30 is 11/20.
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,
7/28 = 7 × 15/28 × 15 = 105/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
9/30 = 9 × 14/30 × 14 = 126/420 - Add the two like fractions:
105/420 + 126/420 = 105 + 126/420 = 231/420 - 231/420 simplified gives 11/20
- So, 7/28 + 9/30 = 11/20
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