Solutions by everydaycalculation.com

1^{st} number: 1 1/3, 2^{nd} number: 9/21

43 + 921 is 3721.

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

LCM of 3 and 21 is**21** - For the 1st fraction, since 3 × 7 = 21,

43 = 4 × 73 × 7 = 2821 - Likewise, for the 2nd fraction, since 21 × 1 = 21,

921 = 9 × 121 × 1 = 921 - Add the two fractions:

2821 + 921 = 28 + 921 = 3721 - In mixed form: 11621

Related: ^{8}/_{3}+^{9}/_{21} ^{4}/_{3}+^{18}/_{21} ^{4}/_{6}+^{9}/_{21} ^{4}/_{3}+^{9}/_{42} ^{12}/_{3}+^{9}/_{21} ^{4}/_{3}+^{27}/_{21} ^{4}/_{9}+^{9}/_{21} ^{4}/_{3}+^{9}/_{63} ^{20}/_{3}+^{9}/_{21} ^{4}/_{3}+^{45}/_{21} ^{4}/_{15}+^{9}/_{21} ^{28}/_{3}+^{9}/_{21} ^{4}/_{3}+^{63}/_{21} ^{4}/_{21}+^{9}/_{21}

© everydaycalculation.com