Subtract 9/90 from 40/35, Solve 1 5/35

Subtract 9/90 from 40/35

1^st number: 1 5/35, 2^nd number: 9/90

40/35 - 9/90 is 73/70.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
40/35 = 40 × 18/35 × 18 = 720/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
9/90 = 9 × 7/90 × 7 = 63/630
Subtract the two like fractions:
720/630 - 63/630 = 720 - 63/630 = 657/630
After reducing the fraction, the answer is 73/70
In mixed form: 13/70

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