Subtract 90/50 from 42/7
1st number: 6 0/7, 2nd number: 1 40/50
42/7 - 90/50 is 21/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 7 × 50 = 350,
42/7 = 42 × 50/7 × 50 = 2100/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
90/50 = 90 × 7/50 × 7 = 630/350 - Subtract the two like fractions:
2100/350 - 630/350 = 2100 - 630/350 = 1470/350 - After reducing the fraction, the answer is 21/5
- In mixed form: 41/5
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