Solutions by everydaycalculation.com

15 - 69 is -715.

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

LCM of 5 and 9 is**45**

Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,

15 = 1 × 95 × 9 = 945 - Likewise, for the 2nd fraction, since 9 × 5 = 45,

69 = 6 × 59 × 5 = 3045 - Subtract the two like fractions:

945 - 3045 = 9 - 3045 = -2145 - After reducing the fraction, the answer is -715

MathStep (Works offline)

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

Android and iPhone/ iPad

Related: ^{2}/_{5}-^{6}/_{9} ^{1}/_{5}-^{12}/_{9} ^{1}/_{10}-^{6}/_{9} ^{1}/_{5}-^{6}/_{18} ^{3}/_{5}-^{6}/_{9} ^{1}/_{5}-^{18}/_{9} ^{1}/_{15}-^{6}/_{9} ^{1}/_{5}-^{6}/_{27} ^{1}/_{5}-^{30}/_{9} ^{1}/_{25}-^{6}/_{9} ^{1}/_{5}-^{6}/_{45} ^{7}/_{5}-^{6}/_{9} ^{1}/_{5}-^{42}/_{9} ^{1}/_{35}-^{6}/_{9} ^{1}/_{5}-^{6}/_{63}

© everydaycalculation.com