Add 20/14 and 21/80, Solve 1 6/14 + 21/80 as a fraction

Add 20/14 and 21/80

1^st number: 1 6/14, 2^nd number: 21/80

20/14 + 21/80 is 947/560.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 14 × 40 = 560,
20/14 = 20 × 40/14 × 40 = 800/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560
Add the two like fractions:
800/560 + 147/560 = 800 + 147/560 = 947/560
So, 20/14 + 21/80 = 947/560
In mixed form: 1387/560

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