Solutions by everydaycalculation.com

921 + 5484 is 1514.

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

LCM of 21 and 84 is**84**

Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,

921 = 9 × 421 × 4 = 3684 - Likewise, for the 2nd fraction, since 84 × 1 = 84,

5484 = 54 × 184 × 1 = 5484 - Add the two like fractions:

3684 + 5484 = 36 + 5484 = 9084 - 90/84 simplified gives 1514
- So, 9/21 + 54/84 = 15/14

In mixed form: 1114

MathStep (Works offline)

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

Android and iPhone/ iPad

Related: ^{18}/_{21}+^{54}/_{84} ^{9}/_{42}+^{54}/_{84} ^{27}/_{21}+^{54}/_{84} ^{9}/_{63}+^{54}/_{84} ^{45}/_{21}+^{54}/_{84} ^{63}/_{21}+^{54}/_{84}

© everydaycalculation.com