Add 90/40 and 70/7
1st number: 2 10/40, 2nd number: 10 0/7
90/40 + 70/7 is 49/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
70/7 = 70 × 40/7 × 40 = 2800/280 - Add the two like fractions:
630/280 + 2800/280 = 630 + 2800/280 = 3430/280 - 3430/280 simplified gives 49/4
- So, 90/40 + 70/7 = 49/4
In mixed form: 121/4
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