Subtract 54/18 from 63/35, Solve 1 28/35

Subtract 54/18 from 63/35

1^st number: 1 28/35, 2^nd number: 3 0/18

63/35 - 54/18 is -6/5.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
63/35 = 63 × 18/35 × 18 = 1134/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
54/18 = 54 × 35/18 × 35 = 1890/630
Subtract the two like fractions:
1134/630 - 1890/630 = 1134 - 1890/630 = -756/630
After reducing the fraction, the answer is -6/5

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