Add 25/80 and 21/70
25/80 + 21/70 is 49/80.
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,
25/80 = 25 × 7/80 × 7 = 175/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
21/70 = 21 × 8/70 × 8 = 168/560 - Add the two like fractions:
175/560 + 168/560 = 175 + 168/560 = 343/560 - 343/560 simplified gives 49/80
- So, 25/80 + 21/70 = 49/80
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