Add 20/28 and 15/80
20/28 + 15/80 is 101/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
20/28 = 20 × 20/28 × 20 = 400/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Add the two like fractions:
400/560 + 105/560 = 400 + 105/560 = 505/560 - 505/560 simplified gives 101/112
- So, 20/28 + 15/80 = 101/112
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