Add 12/28 and 9/30
12/28 + 9/30 is 51/70.
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,
12/28 = 12 × 15/28 × 15 = 180/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
9/30 = 9 × 14/30 × 14 = 126/420 - Add the two like fractions:
180/420 + 126/420 = 180 + 126/420 = 306/420 - 306/420 simplified gives 51/70
- So, 12/28 + 9/30 = 51/70
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