Add 20/8 and 42/7
1st number: 2 4/8, 2nd number: 6 0/7
20/8 + 42/7 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
42/7 = 42 × 8/7 × 8 = 336/56 - Add the two like fractions:
140/56 + 336/56 = 140 + 336/56 = 476/56 - 476/56 simplified gives 17/2
- So, 20/8 + 42/7 = 17/2
In mixed form: 81/2
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