Subtract 28/7 from 98/50, Solve 1 48/50

Subtract 28/7 from 98/50

1^st number: 1 48/50, 2^nd number: 4 0/7

98/50 - 28/7 is -51/25.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 7 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 50 × 7 = 350,
98/50 = 98 × 7/50 × 7 = 686/350
Likewise, for the 2nd fraction, since 7 × 50 = 350,
28/7 = 28 × 50/7 × 50 = 1400/350
Subtract the two like fractions:
686/350 - 1400/350 = 686 - 1400/350 = -714/350
After reducing the fraction, the answer is -51/25

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad