Add 28/80 and 42/35
1st number: 28/80, 2nd number: 1 7/35
28/80 + 42/35 is 31/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 35 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
28/80 = 28 × 7/80 × 7 = 196/560 - Likewise, for the 2nd fraction, since 35 × 16 = 560,
42/35 = 42 × 16/35 × 16 = 672/560 - Add the two like fractions:
196/560 + 672/560 = 196 + 672/560 = 868/560 - 868/560 simplified gives 31/20
- So, 28/80 + 42/35 = 31/20
In mixed form: 111/20
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