Solutions by everydaycalculation.com

34 - 47 is 528.

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

LCM of 4 and 7 is**28**

Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,

34 = 3 × 74 × 7 = 2128 - Likewise, for the 2nd fraction, since 7 × 4 = 28,

47 = 4 × 47 × 4 = 1628 - Subtract the two like fractions:

2128 - 1628 = 21 - 1628 = 528

MathStep (Works offline)

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

Android and iPhone/ iPad

Related: ^{6}/_{4}-^{4}/_{7} ^{3}/_{4}-^{8}/_{7} ^{3}/_{8}-^{4}/_{7} ^{3}/_{4}-^{4}/_{14} ^{9}/_{4}-^{4}/_{7} ^{3}/_{4}-^{12}/_{7} ^{3}/_{12}-^{4}/_{7} ^{3}/_{4}-^{4}/_{21} ^{15}/_{4}-^{4}/_{7} ^{3}/_{4}-^{20}/_{7} ^{3}/_{20}-^{4}/_{7} ^{3}/_{4}-^{4}/_{35} ^{21}/_{4}-^{4}/_{7} ^{3}/_{4}-^{28}/_{7} ^{3}/_{28}-^{4}/_{7} ^{3}/_{4}-^{4}/_{49}

© everydaycalculation.com