Subtract 30/70 from 20/16, Solve 1 4/16

Subtract 30/70 from 20/16

1^st number: 1 4/16, 2^nd number: 30/70

20/16 - 30/70 is 23/28.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 16 × 35 = 560,
20/16 = 20 × 35/16 × 35 = 700/560
Likewise, for the 2nd fraction, since 70 × 8 = 560,
30/70 = 30 × 8/70 × 8 = 240/560
Subtract the two like fractions:
700/560 - 240/560 = 700 - 240/560 = 460/560
After reducing the fraction, the answer is 23/28

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