Add 70/27 and 21/40, Solve 2 16/27 + 21/40 as a fraction

Add 70/27 and 21/40

1^st number: 2 16/27, 2^nd number: 21/40

70/27 + 21/40 is 3367/1080.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 40 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 27 × 40 = 1080,
70/27 = 70 × 40/27 × 40 = 2800/1080
Likewise, for the 2nd fraction, since 40 × 27 = 1080,
21/40 = 21 × 27/40 × 27 = 567/1080
Add the two like fractions:
2800/1080 + 567/1080 = 2800 + 567/1080 = 3367/1080
So, 70/27 + 21/40 = 3367/1080
In mixed form: 3127/1080

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