Add 27/80 and 21/70
27/80 + 21/70 is 51/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
27/80 = 27 × 7/80 × 7 = 189/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
21/70 = 21 × 8/70 × 8 = 168/560 - Add the two like fractions:
189/560 + 168/560 = 189 + 168/560 = 357/560 - 357/560 simplified gives 51/80
- So, 27/80 + 21/70 = 51/80
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