Subtract 63/27 from 80/35, Solve 2 10/35

Subtract 63/27 from 80/35

1^st number: 2 10/35, 2^nd number: 2 9/27

80/35 - 63/27 is -1/21.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 27 is 945

Next, find the equivalent fraction of both fractional numbers with denominator 945
For the 1st fraction, since 35 × 27 = 945,
80/35 = 80 × 27/35 × 27 = 2160/945
Likewise, for the 2nd fraction, since 27 × 35 = 945,
63/27 = 63 × 35/27 × 35 = 2205/945
Subtract the two like fractions:
2160/945 - 2205/945 = 2160 - 2205/945 = -45/945
After reducing the fraction, the answer is -1/21

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