Add 25/80 and 20/28
25/80 + 20/28 is 115/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 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 28 × 20 = 560,
20/28 = 20 × 20/28 × 20 = 400/560 - Add the two like fractions:
175/560 + 400/560 = 175 + 400/560 = 575/560 - 575/560 simplified gives 115/112
- So, 25/80 + 20/28 = 115/112
In mixed form: 13/112
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