Subtract 20/70 from 63/3
1st number: 21 0/3, 2nd number: 20/70
63/3 - 20/70 is 145/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 3 × 70 = 210,
63/3 = 63 × 70/3 × 70 = 4410/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Subtract the two like fractions:
4410/210 - 60/210 = 4410 - 60/210 = 4350/210 - After reducing the fraction, the answer is 145/7
- In mixed form: 205/7
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