Solutions by everydaycalculation.com

13 - 430 is 15.

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

LCM of 3 and 30 is**30** - For the 1st fraction, since 3 × 10 = 30,

13 = 1 × 103 × 10 = 1030 - Likewise, for the 2nd fraction, since 30 × 1 = 30,

430 = 4 × 130 × 1 = 430 - Subtract the two fractions:

1030 - 430 = 10 - 430 = 630 - After reducing the fraction, the answer is 15

Related: ^{2}/_{3}-^{4}/_{30} ^{1}/_{3}-^{8}/_{30} ^{1}/_{6}-^{4}/_{30} ^{1}/_{3}-^{4}/_{60} ^{1}/_{3}-^{12}/_{30} ^{1}/_{9}-^{4}/_{30} ^{1}/_{3}-^{4}/_{90} ^{5}/_{3}-^{4}/_{30} ^{1}/_{3}-^{20}/_{30} ^{1}/_{15}-^{4}/_{30} ^{7}/_{3}-^{4}/_{30} ^{1}/_{3}-^{28}/_{30} ^{1}/_{21}-^{4}/_{30}

Use fraction calculator with our all-in-one calculator app: Download for Android, Download for iOS

© everydaycalculation.com