Add 45/21 and 3/80
1st number: 2 3/21, 2nd number: 3/80
45/21 + 3/80 is 1221/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
45/21 = 45 × 80/21 × 80 = 3600/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
3/80 = 3 × 21/80 × 21 = 63/1680 - Add the two like fractions:
3600/1680 + 63/1680 = 3600 + 63/1680 = 3663/1680 - 3663/1680 simplified gives 1221/560
- So, 45/21 + 3/80 = 1221/560
In mixed form: 2101/560
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