Solutions by everydaycalculation.com

1^{st} number: 18/21, 2^{nd} number: 1 33/42

1821 + 7542 is 3714.

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

LCM of 21 and 42 is**42**

Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,

1821 = 18 × 221 × 2 = 3642 - Likewise, for the 2nd fraction, since 42 × 1 = 42,

7542 = 75 × 142 × 1 = 7542 - Add the two like fractions:

3642 + 7542 = 36 + 7542 = 11142 - 111/42 simplified gives 3714
- So, 18/21 + 75/42 = 37/14

In mixed form: 2914

MathStep (Works offline)

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

Android and iPhone/ iPad

Related: ^{36}/_{21}+^{75}/_{42} ^{18}/_{42}+^{75}/_{42} ^{18}/_{21}+^{75}/_{84} ^{54}/_{21}+^{75}/_{42} ^{18}/_{63}+^{75}/_{42} ^{90}/_{21}+^{75}/_{42}

© everydaycalculation.com