Add 56/70 and 20/72
56/70 + 20/72 is 97/90.
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,
56/70 = 56 × 36/70 × 36 = 2016/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
20/72 = 20 × 35/72 × 35 = 700/2520 - Add the two like fractions:
2016/2520 + 700/2520 = 2016 + 700/2520 = 2716/2520 - 2716/2520 simplified gives 97/90
- So, 56/70 + 20/72 = 97/90
In mixed form: 17/90
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