Solutions by everydaycalculation.com

79 - 510 is 518.

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

LCM of 9 and 10 is**90**

Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,

79 = 7 × 109 × 10 = 7090 - Likewise, for the 2nd fraction, since 10 × 9 = 90,

510 = 5 × 910 × 9 = 4590 - Subtract the two like fractions:

7090 - 4590 = 70 - 4590 = 2590 - After reducing the fraction, the answer is 518

MathStep (Works offline)

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

Android and iPhone/ iPad

Related: ^{14}/_{9}-^{5}/_{10} ^{7}/_{18}-^{5}/_{10} ^{7}/_{9}-^{5}/_{20} ^{21}/_{9}-^{5}/_{10} ^{7}/_{9}-^{15}/_{10} ^{7}/_{27}-^{5}/_{10} ^{7}/_{9}-^{5}/_{30} ^{35}/_{9}-^{5}/_{10} ^{7}/_{9}-^{25}/_{10} ^{7}/_{45}-^{5}/_{10} ^{7}/_{9}-^{5}/_{50} ^{49}/_{9}-^{5}/_{10} ^{7}/_{9}-^{35}/_{10} ^{7}/_{63}-^{5}/_{10} ^{7}/_{9}-^{5}/_{70}

© everydaycalculation.com