Add 20/9 and 21/40, Solve 2 2/9 + 21/40 as a fraction

Add 20/9 and 21/40

1^st number: 2 2/9, 2^nd number: 21/40

20/9 + 21/40 is 989/360.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 9 × 40 = 360,
20/9 = 20 × 40/9 × 40 = 800/360
Likewise, for the 2nd fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360
Add the two like fractions:
800/360 + 189/360 = 800 + 189/360 = 989/360
So, 20/9 + 21/40 = 989/360
In mixed form: 2269/360

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