Add 40/8 and 90/42
1st number: 5 0/8, 2nd number: 2 6/42
40/8 + 90/42 is 50/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
40/8 = 40 × 21/8 × 21 = 840/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
90/42 = 90 × 4/42 × 4 = 360/168 - Add the two like fractions:
840/168 + 360/168 = 840 + 360/168 = 1200/168 - 1200/168 simplified gives 50/7
- So, 40/8 + 90/42 = 50/7
In mixed form: 71/7
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