Q89: Add and simplify.<br>- <span class="ql-formula" data-value="\frac{3}{5}+\frac{2}{7}"><span
Q90: Estimate the value as a whole
Q91: Solve. Write a mixed numeral for
Q92: Solve and simplify.<br>- <span class="ql-formula" data-value="\frac{6}{7}
Q93: Solve. Write a mixed numeral for
Q95: Simplify.<br>- <span class="ql-formula" data-value="\frac{274}{1}"><span class="katex"><span class="katex-mathml"><math
Q96: Add and simplify.<br>- <span class="ql-formula" data-value="\frac{4}{9}+\frac{5}{9}"><span
Q97: Simplify.<br>- <span class="ql-formula" data-value="\frac{0}{11}"><span class="katex"><span class="katex-mathml"><math
Q98: Simplify.<br>- <span class="ql-formula" data-value="\frac{68}{76}"><span class="katex"><span class="katex-mathml"><math
Q99: Add. Write a mixed numeral for