Add 21/80 and 45/35
1st number: 21/80, 2nd number: 1 10/35
21/80 + 45/35 is 867/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 35 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560 - Likewise, for the 2nd fraction, since 35 × 16 = 560,
45/35 = 45 × 16/35 × 16 = 720/560 - Add the two like fractions:
147/560 + 720/560 = 147 + 720/560 = 867/560 - So, 21/80 + 45/35 = 867/560
In mixed form: 1307/560
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