Add 21/35 and 21/16, Solve 21/35 + 1 5/16 as a fraction

Add 21/35 and 21/16

1^st number: 21/35, 2^nd number: 1 5/16

21/35 + 21/16 is 153/80.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 16 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 35 × 16 = 560,
21/35 = 21 × 16/35 × 16 = 336/560
Likewise, for the 2nd fraction, since 16 × 35 = 560,
21/16 = 21 × 35/16 × 35 = 735/560
Add the two like fractions:
336/560 + 735/560 = 336 + 735/560 = 1071/560
1071/560 simplified gives 153/80
So, 21/35 + 21/16 = 153/80
In mixed form: 173/80

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