Add 4/70 and 20/72
4/70 + 20/72 is 211/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
4/70 = 4 × 36/70 × 36 = 144/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
20/72 = 20 × 35/72 × 35 = 700/2520 - Add the two like fractions:
144/2520 + 700/2520 = 144 + 700/2520 = 844/2520 - 844/2520 simplified gives 211/630
- So, 4/70 + 20/72 = 211/630
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