Add 90/5 and 21/7
1st number: 18 0/5, 2nd number: 3 0/7
90/5 + 21/7 is 21/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
90/5 = 90 × 7/5 × 7 = 630/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
21/7 = 21 × 5/7 × 5 = 105/35 - Add the two like fractions:
630/35 + 105/35 = 630 + 105/35 = 735/35 - 735/35 simplified gives 21/1
- So, 90/5 + 21/7 = 21/1
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