Add 54/21 and 8/80
1st number: 2 12/21, 2nd number: 8/80
54/21 + 8/80 is 187/70.
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,
54/21 = 54 × 80/21 × 80 = 4320/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
8/80 = 8 × 21/80 × 21 = 168/1680 - Add the two like fractions:
4320/1680 + 168/1680 = 4320 + 168/1680 = 4488/1680 - 4488/1680 simplified gives 187/70
- So, 54/21 + 8/80 = 187/70
In mixed form: 247/70
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