Subtract 90/70 from 50/18, Solve 2 14/18

Subtract 90/70 from 50/18

1^st number: 2 14/18, 2^nd number: 1 20/70

50/18 - 90/70 is 94/63.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 18 × 35 = 630,
50/18 = 50 × 35/18 × 35 = 1750/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630
Subtract the two like fractions:
1750/630 - 810/630 = 1750 - 810/630 = 940/630
After reducing the fraction, the answer is 94/63
In mixed form: 131/63

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