Add 28/35 and 42/40
1st number: 28/35, 2nd number: 1 2/40
28/35 + 42/40 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
28/35 = 28 × 8/35 × 8 = 224/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
42/40 = 42 × 7/40 × 7 = 294/280 - Add the two like fractions:
224/280 + 294/280 = 224 + 294/280 = 518/280 - 518/280 simplified gives 37/20
- So, 28/35 + 42/40 = 37/20
In mixed form: 117/20
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