Add 90/40 and 70/28
1st number: 2 10/40, 2nd number: 2 14/28
90/40 + 70/28 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 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 28 × 10 = 280,
70/28 = 70 × 10/28 × 10 = 700/280 - Add the two like fractions:
630/280 + 700/280 = 630 + 700/280 = 1330/280 - 1330/280 simplified gives 19/4
- So, 90/40 + 70/28 = 19/4
In mixed form: 43/4
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