Solutions by everydaycalculation.com

1^{st} number: 4 1/5, 2^{nd} number: 70/90

215 - 7090 is 15445.

- Find the least common denominator or LCM of the two denominators:

LCM of 5 and 90 is**90**

Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,

215 = 21 × 185 × 18 = 37890 - Likewise, for the 2nd fraction, since 90 × 1 = 90,

7090 = 70 × 190 × 1 = 7090 - Subtract the two like fractions:

37890 - 7090 = 378 - 7090 = 30890 - After reducing the fraction, the answer is 15445
- In mixed form: 31945

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:

Android and iPhone/ iPad

Related: ^{42}/_{5}-^{70}/_{90} ^{21}/_{10}-^{70}/_{90} ^{63}/_{5}-^{70}/_{90} ^{21}/_{15}-^{70}/_{90} ^{21}/_{25}-^{70}/_{90} ^{21}/_{35}-^{70}/_{90}

© everydaycalculation.com