Add 21/35 and 81/16
1st number: 21/35, 2nd number: 5 1/16
21/35 + 81/16 is 453/80.
Steps for adding fractions
- 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,
81/16 = 81 × 35/16 × 35 = 2835/560 - Add the two like fractions:
336/560 + 2835/560 = 336 + 2835/560 = 3171/560 - 3171/560 simplified gives 453/80
- So, 21/35 + 81/16 = 453/80
In mixed form: 553/80
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