Add 21/35 and 42/16
1st number: 21/35, 2nd number: 2 10/16
21/35 + 42/16 is 129/40.
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,
42/16 = 42 × 35/16 × 35 = 1470/560 - Add the two like fractions:
336/560 + 1470/560 = 336 + 1470/560 = 1806/560 - 1806/560 simplified gives 129/40
- So, 21/35 + 42/16 = 129/40
In mixed form: 39/40
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