Add 2/80 and 45/21
1st number: 2/80, 2nd number: 2 3/21
2/80 + 45/21 is 607/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
2/80 = 2 × 21/80 × 21 = 42/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
45/21 = 45 × 80/21 × 80 = 3600/1680 - Add the two like fractions:
42/1680 + 3600/1680 = 42 + 3600/1680 = 3642/1680 - 3642/1680 simplified gives 607/280
- So, 2/80 + 45/21 = 607/280
In mixed form: 247/280
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