Add 20/36 and 9/70
20/36 + 9/70 is 431/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
20/36 = 20 × 35/36 × 35 = 700/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
9/70 = 9 × 18/70 × 18 = 162/1260 - Add the two like fractions:
700/1260 + 162/1260 = 700 + 162/1260 = 862/1260 - 862/1260 simplified gives 431/630
- So, 20/36 + 9/70 = 431/630
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