Add 7/20 and 9/70
7/20 + 9/70 is 67/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Add the two like fractions:
49/140 + 18/140 = 49 + 18/140 = 67/140 - So, 7/20 + 9/70 = 67/140
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