Add 1/80 and 45/42
1st number: 1/80, 2nd number: 1 3/42
1/80 + 45/42 is 607/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
1/80 = 1 × 21/80 × 21 = 21/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
45/42 = 45 × 40/42 × 40 = 1800/1680 - Add the two like fractions:
21/1680 + 1800/1680 = 21 + 1800/1680 = 1821/1680 - 1821/1680 simplified gives 607/560
- So, 1/80 + 45/42 = 607/560
In mixed form: 147/560
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