Add 9/70 and 9/28
9/70 + 9/28 is 9/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
9/28 = 9 × 5/28 × 5 = 45/140 - Add the two like fractions:
18/140 + 45/140 = 18 + 45/140 = 63/140 - 63/140 simplified gives 9/20
- So, 9/70 + 9/28 = 9/20
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